Spider bites vary greatly depending on the species, from harmless itching to severe medical emergencies. In this guide, we cover 37 types of spider bites, helping you identify each one through detailed descriptions and clear bite appearance pictures. You’ll learn the unique symptoms, how each bite looks in early stages, and when it’s time to seek medical help. Whether it’s a recluse, widow, or garden spider, this guide is your go-to reference for bite identification and treatment.
1. Brown Recluse Spider Bite
The brown recluse spider is known for its medically significant bite. Although not aggressive, it can bite when pressed against the skin, often while someone is sleeping or dressing. The bite is sometimes painless at first but can become severe, especially if left untreated.
Bite Appearance
A brown recluse bite often starts as a small red bump. Within hours, it may develop a blister with a pale center and a red or purple outer ring, resembling a bullseye. As the bite progresses, the center may darken and begin to sink, leading to tissue damage.
Bite Identification
- Small red or white blister
- Central pale area with a red or purple outer ring
- Progresses to an ulcer or open sore
- Found on thighs, arms, abdomen, or chest
- Often occurs after the spider is trapped under clothes or bedding
Bite Symptoms
At first, the bite might cause mild stinging or irritation. Over time, pain increases and the area may swell. Some individuals experience fever, chills, nausea, fatigue, or muscle aches. The wound may become more tender and painful as tissue damage begins to spread.
Brown Recluse Spider Bite Stages
- Initial Stage (0–6 hours): Slight redness or swelling; may go unnoticed
- Blister Stage (6–24 hours): A blister forms, pain intensifies
- Necrotic Stage (1–5 days): Tissue around the bite darkens, ulcer forms, necrosis may begin
- Healing Stage (1–8 weeks): Scabbing and slow recovery; in severe cases, scarring may occur
Bite Treatment
Wash the area with soap and water as soon as possible. Apply a cold compress to minimize swelling. Elevating the affected area can help reduce inflammation. Pain relievers may ease discomfort. Medical care is necessary if the wound worsens, becomes infected, or shows signs of necrosis. In some cases, antibiotics or surgical treatment may be required.
How long does it take to heal?
Most mild cases heal within 2–4 weeks. Severe bites that involve tissue damage may take up to 8 weeks or longer.
When to worry about a brown recluse bite?
If the area becomes blackened, grows larger, or is accompanied by fever, vomiting, or intense pain, seek medical attention immediately.
2. Black Widow Spider Bite
The black widow spider is easily recognized by its shiny black body and red hourglass marking. Though its venom is potent, most bites do not result in serious medical issues if treated promptly. Bites usually occur when the spider is disturbed in dark, cluttered places like garages or sheds.
Bite Appearance
A black widow bite may look like two tiny puncture marks. Within a few hours, redness and swelling develop around the area. The bite site may appear pale in the center with redness surrounding it and can become hard to the touch. In some cases, a small blister forms.
Bite Identification
- Two small red puncture marks
- Surrounding redness and mild swelling
- Appears on hands, legs, or torso
- May develop a firm, pale center
- Often painful within 1–3 hours
Bite Symptoms
The bite usually causes sharp, localized pain shortly after the bite. Symptoms may escalate to muscle cramps, nausea, tremors, sweating, and in rare cases, difficulty breathing. Pain may radiate to the chest or abdomen, often mimicking symptoms of appendicitis or a heart attack.
Black Widow Spider Bite Stages
- Initial Stage (0–1 hour): Local pain and faint puncture marks
- Spread Stage (1–4 hours): Pain intensifies, muscle cramps begin
- Systemic Stage (4–24 hours): Whole-body symptoms like chills, nausea, and abdominal pain
- Recovery Stage (1–7 days): Symptoms subside, but muscle pain may persist
Bite Treatment
Clean the wound thoroughly and apply ice to reduce swelling. Pain relievers can be used to manage discomfort. Muscle relaxants and antivenom may be administered in severe cases. Hospitalization may be needed if symptoms involve breathing difficulty or high blood pressure.
How painful is a black widow spider bite?
It can be extremely painful, with muscle cramps being the most intense symptom. The pain may last for several days without treatment.
When should you see a doctor for a black widow bite?
If you experience severe abdominal pain, chest tightness, or muscle cramps spreading beyond the bite area, seek immediate medical attention.
3. Wolf Spider Bite
Wolf spiders are fast-moving ground hunters, commonly found in grass, basements, or near foundations. Their bites are not venomous to humans but can cause discomfort and localized symptoms.
Bite Appearance
A wolf spider bite usually appears as a red, swollen area with a central puncture. It resembles a bee sting and may be mistaken for other insect bites. Sometimes, it can form a small blister or scab.
Bite Identification
- Single bite mark with surrounding redness
- May look like a raised welt or rash
- Bite usually on feet, legs, or hands
- Slightly painful to touch
- No bullseye pattern or widespread reaction
Bite Symptoms
Most wolf spider bites cause mild pain, itching, and swelling. Some people may experience fatigue or a mild fever, but serious complications are rare. The area might become slightly warm and tender as part of the body’s response.
Wolf Spider Bite Stages
- Initial Stage (0–2 hours): Red bump forms, itching or burning sensation
- Irritation Stage (2–12 hours): Swelling and discomfort peak
- Healing Stage (1–7 days): Area may scab and gradually heal without complications
- Post-healing Stage: In rare cases, light scarring or pigmentation changes may remain
Bite Treatment
Wash the bite with soap and water and apply a cold compress to reduce pain. Antihistamines may relieve itching. Most cases heal on their own, but consult a doctor if signs of infection appear, such as pus, spreading redness, or fever.
Is a wolf spider bite dangerous?
No, wolf spider bites are generally harmless and heal quickly. They are not considered medically significant.
Can a wolf spider bite get infected?
Yes, if not kept clean, any open wound, including a wolf spider bite, can become infected. Proper hygiene is essential during recovery.
4. Yellow Sac Spider Bite
Yellow sac spiders are small, pale yellow to light green spiders commonly found indoors, especially along walls and ceilings. Though not aggressive, they may bite if provoked. Their bites are mildly venomous and can cause localized reactions similar to a bee sting.
Bite Appearance
The bite often begins as a small red spot or bump. Within a few hours, it can turn into a blister or ulcer, occasionally forming a necrotic center. Unlike the brown recluse, the necrosis is usually mild and self-limiting.
Bite Identification
- Small red or pink bump
- Central blister or slight ulcer
- Redness and mild swelling around the bite
- Typically on arms, neck, or chest
- May resemble a mild pimple or bug bite
Bite Symptoms
Most people feel a mild burning or stinging sensation at the bite site. This may be followed by itching, redness, and slight swelling. In some cases, fatigue, headache, or nausea may develop. Systemic symptoms are rare.
Yellow Sac Spider Bite Stages
- Initial Stage (0–4 hours): Mild pain and red bump appears
- Inflammatory Stage (4–12 hours): Local redness, slight blistering or ulceration
- Necrotic Stage (if occurs): Minor tissue breakdown in a small area
- Healing Stage (2–10 days): Wound dries, scabs, and heals gradually
Bite Treatment
Clean the area gently with soap and water. Apply a cool compress to ease swelling. Anti-itch creams or oral antihistamines can help with irritation. Most bites resolve without medical intervention, but consult a doctor if the wound worsens or doesn’t heal.
Do yellow sac spider bites cause necrosis?
In rare cases, yes—but the necrosis is typically small and not as severe as that caused by a brown recluse.
Are yellow sac spider bites dangerous?
They are usually not dangerous, but the bite can be irritating and painful for a few days.
5. Hobo Spider Bite
Hobo spiders are found in the northwestern United States and are sometimes mistaken for brown recluse spiders. Their bites were once believed to cause necrosis, but recent studies suggest they are less harmful than previously thought.
Bite Appearance
A hobo spider bite may look like a blister or small ulcer surrounded by redness. It can be confused with a mild skin infection or pimple. A central scab or open wound may develop in rare cases.
Bite Identification
- Red bump with a possible blister
- Dry or crusty center
- Mild to moderate swelling
- Commonly on legs or hands
- No visible puncture marks in most cases
Bite Symptoms
Initial symptoms include redness, warmth, and a slight burning feeling. Some individuals may feel headache, nausea, or fatigue, but systemic effects are rare. The area might become sore to the touch as it develops a blister or ulcer.
Hobo Spider Bite Stages
- Initial Stage (0–6 hours): Redness and slight burning sensation
- Blistering Stage (6–24 hours): Blister or open sore may form
- Inflammation Stage (1–3 days): Mild pain and swelling around the bite
- Healing Stage (1–2 weeks): Gradual drying and healing, with low risk of scarring
Bite Treatment
Wash the bite site with soap and water. Apply a cold compress and take over-the-counter pain relievers if necessary. Most bites heal on their own. If the wound worsens, consult a healthcare professional.
Are hobo spider bites venomous?
While they do inject venom, most cases are mild and not medically significant. Severe reactions are extremely rare.
How to tell if it’s a hobo spider bite?
It’s difficult without capturing the spider. Look for a red bump with blistering, usually without systemic symptoms.
6. Brown Widow Spider Bite
The brown widow spider is a cousin of the more infamous black widow. It has a brown body with an orange or yellow hourglass marking and is found in warm climates like the southern U.S., especially around fences, outdoor furniture, and mailboxes. Its venom is less toxic, but the bite can still be painful.
Bite Appearance
A brown widow bite may show two small puncture marks, followed by swelling and redness. The area may become firm, with a pale center surrounded by reddish discoloration. In some cases, a blister may form.
Bite Identification
- Two small red or white puncture spots
- Redness and swelling
- Possible blister or pale center
- Often found on hands, arms, or legs
- Sometimes mistaken for a bug or mosquito bite
Bite Symptoms
Most brown widow bites cause localized pain, burning, or itching. Unlike the black widow, systemic symptoms like muscle cramps or nausea are rare. Some people may feel mild fatigue or headache. The discomfort typically fades within a few days.
Brown Widow Spider Bite Stages
- Early Stage (0–4 hours): Local pain or itching, swelling begins
- Mid Stage (4–24 hours): Redness, tenderness, and possible blistering
- Recovery Stage (1–5 days): Discomfort fades, skin may scab or peel slightly
- Healing Stage (up to 2 weeks): Full healing with minimal or no scarring
Bite Treatment
Clean the bite with mild soap and water. Use a cold compress to reduce inflammation. Over-the-counter painkillers or antihistamines may help with symptoms. Seek medical advice if the pain spreads or the wound looks infected, but most bites heal without complications.
Are brown widow bites dangerous?
Not usually. The venom is weaker than that of the black widow, and bites tend to cause only local irritation.
How long does a brown widow spider bite last?
Most bites resolve in a few days to a week with basic home care.
7. Camel Spider Bite
Camel spiders, also known as wind scorpions or sun spiders, are arachnids found in desert regions. Despite scary myths, they are non-venomous. However, their powerful jaws can deliver a painful bite that may become infected if not treated properly.
Bite Appearance
Camel spider bites usually appear as large, painful puncture wounds. Swelling and redness develop quickly. The area may bruise or form a scab, especially if the bite breaks the skin deeply.
Bite Identification
- Large bite mark with visible puncture
- Swollen and red around the bite
- May look like a cut or tear in the skin
- Typically on legs or hands
- No distinct bullseye or central ulcer
Bite Symptoms
The bite is painful immediately due to the mechanical force of the jaws. Swelling, redness, and warmth follow quickly. Though not venomous, bacteria from the bite can cause infection. Headaches or mild fever can occur in some cases due to inflammation.
Camel Spider Bite Stages
- Immediate Stage (0–1 hour): Sharp pain, visible wound or bleeding
- Inflammatory Stage (1–12 hours): Swelling, redness, and tenderness
- Infection Risk Stage (1–3 days): If untreated, the area may develop pus or warmth
- Healing Stage (3–14 days): Scab forms, tissue repairs, and pain subsides
Bite Treatment
Thoroughly wash the area with antibacterial soap. Apply antiseptic ointment and keep it covered. Use ice packs to reduce swelling and take pain relievers if needed. Seek medical care if signs of infection develop.
Do camel spiders have venom?
No, camel spiders are non-venomous, but their bite can still be very painful and prone to infection due to bacteria.
Can a camel spider bite cause infection?
Yes, if not properly cleaned, the wound may become infected due to the depth and bacteria introduced during the bite.
8. Jumping Spider Bite
Jumping spiders are small, curious, and active hunters known for their excellent vision and distinctive movements. They are generally harmless to humans and bite only when provoked. Their venom is weak, and the bite typically causes minor discomfort.
Bite Appearance
A jumping spider bite looks like a small, red bump—similar to a mosquito bite. The area may become slightly swollen and itchy. In rare cases, a tiny blister or central whitehead may develop.
Bite Identification
- Tiny red or pink bump
- Mild swelling and itching
- Usually appears on hands, arms, or legs
- Central point may look like a whitehead or dot
- No necrosis or ulcer formation
Bite Symptoms
Symptoms are usually mild and may include itching, localized swelling, and slight tenderness. The discomfort fades within a few hours to a couple of days. Some individuals may not notice they were bitten at all.
Jumping Spider Bite Stages
- Initial Stage (0–2 hours): Minor irritation, red bump appears
- Peak Stage (2–12 hours): Mild itching or burning sensation
- Healing Stage (1–3 days): Redness fades, skin returns to normal
- Post-healing Stage: No long-term effects or scarring
Bite Treatment
Wash the area with soap and water. Apply a cool compress to reduce swelling and take an antihistamine if itching is present. No medical intervention is typically needed unless an allergic reaction occurs.
Are jumping spider bites dangerous?
No, they are not dangerous. Their bites are mild and rarely require medical care.
How long does a jumping spider bite last?
Most bites clear up within 24–72 hours with basic home care.
9. Redback Spider Bite
The redback spider is closely related to the black widow and is native to Australia. It has a distinctive red stripe on its back and is often found in sheds, outdoor toilets, or under rocks. Its venom can be harmful and occasionally life-threatening if not treated.
Bite Appearance
The bite usually starts as a small, painful red spot. It may turn into a larger area of redness and swelling over several hours. A central blister or pale zone can appear, surrounded by redness.
Bite Identification
- Red or purplish bite mark
- May include blister or ulcer
- Intense local pain that can spread
- Typically on limbs or torso
- Often occurs in outdoor areas
Bite Symptoms
Symptoms begin with sharp pain and may intensify within hours. Common signs include sweating, muscle aches, nausea, and pain radiating from the bite site. Severe cases can involve high blood pressure, vomiting, or breathing difficulty—especially in children or elderly patients.
Redback Spider Bite Stages
- Initial Stage (0–1 hour): Pain at bite site, red bump forms
- Systemic Stage (1–6 hours): Pain radiates, sweating and nausea may begin
- Worsening Stage (6–24 hours): Possible fever, headache, and increased discomfort
- Recovery Stage (1–7 days): Symptoms gradually improve with or without antivenom
Bite Treatment
Clean the wound and apply ice packs to relieve pain. Avoid movement of the bitten limb. Seek immediate medical attention—especially for children or if systemic symptoms occur. Antivenom may be administered in severe cases.
Is a redback spider bite fatal?
Fatalities are rare due to the availability of antivenom, but severe symptoms require urgent medical care.
What are signs of a serious redback bite?
Severe muscle pain, nausea, sweating, or difficulty breathing are all signs that immediate treatment is needed.
10. House Spider Bite
House spiders, commonly found in corners, basements, and ceilings, are harmless to humans. While they can bite if threatened, their venom is not dangerous. Most bites are accidental and go unnoticed.
Bite Appearance
The bite usually appears as a small, red bump—often mistaken for a pimple or bug bite. It may be slightly raised and can itch mildly.
Bite Identification
- Small, red or pink bump
- No blistering or bullseye pattern
- Minimal swelling
- Typically on hands, arms, or legs
- Often goes unnoticed or confused with minor insect bites
Bite Symptoms
Mild itching, redness, or swelling may occur. Pain is minimal or absent. In most cases, the bite resolves without any treatment. No systemic symptoms are expected.
Bite Treatment
Clean the area with soap and water. Apply a cold compress to reduce any minor swelling or itching. No further treatment is necessary unless signs of infection appear.
Do house spiders bite humans?
Yes, but only when provoked. Their bites are rare and not harmful.
Should I worry about a house spider bite?
No. It’s generally harmless and heals quickly on its own.
11. Banana Spider Bite
Banana spiders (also known as golden orb-weavers) are large, brightly colored spiders found in warm regions. They are known for spinning massive webs, often seen in gardens and forests. Despite their intimidating size, they are not considered dangerous to humans.
Bite Appearance
The bite may cause slight redness and a raised bump. It resembles a mild bee sting or mosquito bite and usually clears up within a day or two.
Bite Identification
- Small red bump with mild swelling
- Occurs on exposed skin (arms, legs)
- No puncture marks or spreading damage
- Often painless or mildly irritating
Bite Symptoms
Symptoms include mild discomfort, a stinging or tingling feeling, and localized redness. Some individuals may experience a slight burning sensation that fades quickly.
Bite Treatment
Wash the bite area gently and apply a cool compress. Antihistamines may help if itching develops. Medical treatment is not required unless an allergic reaction occurs.
Are banana spider bites venomous?
They are mildly venomous but not harmful to humans. The venom is used to subdue prey, not for defense.
What should I do if bitten by a banana spider?
Clean the area, manage any mild symptoms at home, and monitor for allergic reactions, though they are extremely rare.
12. Black House Spider Bite
The black house spider is native to Australia and often builds funnel-shaped webs in window frames, sheds, and bark. While their bite is venomous, it is not considered life-threatening to humans. Symptoms are usually localized and manageable.
Bite Appearance
A black house spider bite may appear as a red, swollen area with a central dark spot or mild blistering. It can look similar to a bee sting.
Bite Identification
- Red, swollen bump
- Possible central blister or black dot
- Typically found on limbs, near exposed skin
- May appear irritated or slightly inflamed
- Often confused with insect bites
Bite Symptoms
Symptoms include localized pain, swelling, and itching. Some people may feel a tingling or numbness near the bite. In rare cases, nausea, headache, or mild sweating may occur but generally subside within 24–48 hours.
Black House Spider Bite Stages
- Initial Stage (0–2 hours): Pain and swelling at the bite site
- Inflammation Stage (2–24 hours): Continued redness and discomfort
- Healing Stage (2–7 days): Gradual reduction of symptoms and skin recovery
Bite Treatment
Clean the bite site with warm water and soap. Use a cold compress to reduce swelling. Painkillers or antihistamines can help with discomfort. Seek medical attention if symptoms worsen or signs of infection appear.
Can a black house spider bite make you sick?
Only mild symptoms are expected. Serious illness from this spider’s bite is very rare.
Should I visit a doctor after a black house spider bite?
Not usually—but consult one if the bite becomes infected or symptoms last more than a few days.
13. Orb Weaver Spider Bite
Orb weavers are a large family of spiders known for their intricate, circular webs. They are often seen in gardens, bushes, and around lights at night. Despite their size and vibrant patterns, they are not harmful to humans.
Bite Appearance
An orb weaver bite may cause a small, red bump similar to a mosquito or ant bite. Swelling is minimal and short-lived.
Bite Identification
- Tiny red bump or welt
- No puncture marks visible
- Usually on exposed skin like arms or hands
- Mild irritation and redness
- Resembles a mild bug bite
Bite Symptoms
Symptoms are very mild and include slight itching, a tingling feeling, or brief pain. Symptoms usually resolve within a few hours to a day without any medical treatment.
Bite Treatment
Wash the area with soap and water. A cold compress can help with itching or swelling. Antihistamines may be taken if needed for irritation. No further care is usually required.
Do orb weaver spiders bite often?
Rarely. They are very docile and bite only in self-defense if handled roughly.
Are orb weaver spider bites harmful?
No, they are completely harmless to humans.
14. Funnel Web Spider Bite
The funnel web spider is one of the most dangerous spiders in the world, found primarily in eastern Australia. Known for its aggressive behavior and potent venom, especially in males, a bite from this spider is considered a medical emergency.
Bite Appearance
The bite often appears as two small puncture marks. The area may swell quickly, turn red, and become very painful. In some cases, the skin around the bite may blister or become hard.
Bite Identification
- Two visible puncture marks
- Rapidly swelling, red, and painful area
- Often on feet, legs, or hands
- May be accompanied by tingling or numbness
- Sometimes bruising or sweating at the bite site
Bite Symptoms
Symptoms begin quickly, usually within 10–30 minutes, and may include intense pain, muscle twitching, nausea, salivation, sweating, difficulty breathing, and confusion. In severe cases, the bite can lead to coma or death without prompt antivenom treatment.
Funnel Web Spider Bite Stages
- Initial Stage (0–30 minutes): Sharp pain, swelling, local sweating
- Systemic Stage (30–120 minutes): Muscle spasms, nausea, drooling, breathing difficulty
- Critical Stage (2–4 hours): Risk of coma or death without treatment
- Recovery Stage (1–7 days with antivenom): Gradual return to normal; hospital care often required
Bite Treatment
Call emergency services immediately. Immobilize the bitten limb and apply a pressure bandage. Keep the victim calm and still. Do not wash the bite, as venom residue helps identify the spider for treatment. Antivenom is the only effective treatment and should be administered as soon as possible.
How deadly is a funnel web spider bite?
Without antivenom, some funnel web bites—especially from males—can be fatal within hours. Immediate treatment is critical.
What is the first aid for a funnel web bite?
Apply a pressure immobilization bandage and seek emergency medical help. Antivenom must be administered quickly.
15. Redback Spider Bite
The redback spider is a highly venomous species native to Australia, closely related to the black widow. Though its venom is potent, fatalities are rare thanks to the availability of antivenom.
Bite Appearance
The bite site may show two small puncture marks with surrounding redness and swelling. It can develop a pale center or small blister and may become warm and tender to the touch.
Bite Identification
- Small red bite with central blister
- Localized pain and swelling
- Commonly on arms, legs, or torso
- Skin may feel hot or tight
- Puncture marks sometimes visible
Bite Symptoms
Pain begins immediately and can become intense within an hour. Other symptoms may include sweating, muscle pain (especially in the back or abdomen), nausea, vomiting, headache, and elevated heart rate. Children and the elderly may experience more severe effects.
Redback Spider Bite Stages
- Immediate Stage (0–1 hour): Sharp pain and localized swelling
- Systemic Stage (1–6 hours): Sweating, headache, abdominal or chest pain
- Progression Stage (6–24 hours): Symptoms may peak and persist
- Recovery Stage (1–5 days): Gradual improvement; may need hospital care
Bite Treatment
Clean the bite area and apply ice packs to reduce pain. Do not use a pressure bandage. Seek medical attention—especially for severe symptoms or in vulnerable individuals. Antivenom may be required in moderate to severe cases.
Do redback spider bites require antivenom?
Not always, but antivenom is recommended for severe pain or systemic symptoms that do not improve with basic care.
Can a redback spider bite be fatal?
Very rarely. Modern medical care and antivenom have made fatalities almost nonexistent.
16. Brazilian Wandering Spider Bite
The Brazilian wandering spider, also known as the armed spider, is considered one of the most venomous spiders in the world. Native to South America, it is highly aggressive and delivers a potent neurotoxic bite that can be life-threatening without treatment.
Bite Appearance
The bite typically causes immediate pain, redness, and swelling. It may present as two puncture marks with surrounding inflammation. In some cases, sweating and goosebumps appear near the bite site.
Bite Identification
- Two small fang punctures
- Rapid swelling and redness
- Painful even without touch
- Often located on limbs or hands
- May appear with localized sweating or muscle spasms
Bite Symptoms
Symptoms begin quickly and include severe pain, muscle cramps, excessive salivation, nausea, dizziness, and in men, a prolonged and painful erection (priapism). In serious cases, breathing difficulty, increased heart rate, and shock may develop—especially in children or those with preexisting conditions.
Brazilian Wandering Spider Bite Stages
- Initial Stage (0–30 minutes): Intense local pain, swelling
- Neurotoxic Stage (30 min–2 hours): Sweating, cramps, salivation, priapism
- Severe Stage (2–6 hours): Breathing problems, high blood pressure, possible seizures
- Recovery Stage (1–5 days): Gradual easing of symptoms with medical care
Bite Treatment
Immediate emergency care is essential. Apply a cold compress to manage swelling, but avoid a tourniquet. Keep the affected limb still and below heart level. Antivenom is available in South America and should be administered as soon as possible in severe cases.
Is the Brazilian wandering spider bite fatal?
It can be without antivenom, particularly in children. Fast medical care significantly reduces the risk of death.
What is the most unique symptom of this spider bite?
In men, the bite can cause priapism—a painful, prolonged erection that may last for hours.
17. Bold Jumping Spider Bite
Bold jumping spiders are common in North America. They are small, black spiders with distinctive white or orange markings and large front eyes. Although they can bite if threatened, their venom poses no danger to humans.
Bite Appearance
The bite appears as a tiny red or pink bump. There may be mild swelling or itching, and it is often mistaken for a mosquito or ant bite.
Bite Identification
- Tiny raised bump
- Mild redness, sometimes with a white center
- Usually on hands, arms, or neck
- No blistering or widespread inflammation
- No necrosis or ulcer formation
Bite Symptoms
Symptoms are minimal. You may experience mild itching, a tingling sensation, or brief pain. There are no serious or systemic symptoms associated with this bite.
Bite Treatment
Clean the area with soap and water. Apply a cool compress to reduce any swelling or discomfort. Antihistamines may help with itching. No further treatment is usually needed.
Can bold jumping spiders harm humans?
No, they are harmless. Their bite may cause minor discomfort, but it is not medically significant.
How long do symptoms last from a bold jumping spider bite?
Typically less than 24–48 hours with home care.
18. White Sac Spider Bite
White sac spiders, often found indoors in wall corners, window frames, or ceiling edges, are active hunters and bite when disturbed. Though their venom is mildly cytotoxic, bites are typically not dangerous and heal with minimal care.
Bite Appearance
The bite site often starts as a small red bump or blister. Over time, it may develop a pale center and mild swelling, resembling a pimple or ant bite. Occasionally, a small ulcer may form.
Bite Identification
- Small red or white bump
- Possible blister with a pale center
- Mild redness and swelling
- Most often on arms, neck, or upper body
- No systemic pattern or widespread skin damage
Bite Symptoms
Most bites cause mild pain or burning, followed by itching and slight swelling. In some cases, fatigue or a headache may accompany the bite. Rarely, the area may develop minor necrosis but generally heals without complications.
White Sac Spider Bite Stages
- Initial Stage (0–4 hours): Red bump, stinging or burning sensation
- Irritation Stage (4–12 hours): Itching, swelling, and minor blistering
- Healing Stage (2–7 days): Gradual scabbing and tissue repair
Bite Treatment
Clean the bite with soap and warm water. Apply a cold compress and take antihistamines or over-the-counter pain relief if needed. Monitor the wound for signs of infection, but most cases resolve on their own.
Are white sac spider bites venomous?
Yes, mildly—but the effects are localized and not dangerous to healthy adults.
Should I seek medical help for a white sac spider bite?
Only if the area worsens, shows signs of infection, or you experience an allergic reaction.
19. False Widow Spider Bite
False widow spiders, often confused with the black widow, are found in parts of Europe, the U.S., and Australia. While their bite can be painful, it’s usually not serious. Some people experience more intense symptoms due to individual sensitivity.
Bite Appearance
A false widow bite often looks like a red bump with a central puncture. It may swell and become warm, and in some cases, a blister or ulcer forms.
Bite Identification
- Central puncture surrounded by redness
- Localized swelling or warmth
- Blister or small open wound in some cases
- May resemble a mild boil or abscess
- Typically on arms, legs, or torso
Bite Symptoms
Pain at the bite site is common, sometimes described as sharp or burning. Other symptoms can include fatigue, headache, nausea, or mild fever. Some individuals may develop muscle aches or swollen lymph nodes nearby.
False Widow Spider Bite Stages
- Early Stage (0–6 hours): Pain, swelling, and localized redness
- Progressive Stage (6–24 hours): Formation of blister, possible ulceration
- Recovery Stage (1–7 days): Healing with or without scabbing; rare complications
Bite Treatment
Clean the area and apply ice packs for swelling. Over-the-counter medications can help manage pain and inflammation. If symptoms worsen or an allergic reaction occurs, seek medical attention.
Can a false widow spider bite cause serious harm?
Usually not. Severe reactions are rare and more likely in people with allergies or weakened immune systems.
How long does it take for a false widow spider bite to heal?
Most bites heal in 3–7 days, though minor scarring may remain in rare cases.
20. Redback Jumping Spider Bite
The redback jumping spider is a small, colorful spider known for its agility and curious behavior. Despite its name, it’s not related to the highly venomous redback spider. It’s found in parts of North America and is generally harmless.
Bite Appearance
A bite may appear as a tiny red bump, often similar to a mosquito bite. The site might feel slightly itchy or sensitive for a few hours.
Bite Identification
- Small red or pink bump
- No visible puncture marks
- Mild irritation or itching
- Typically appears on hands or arms
- No blistering, ulceration, or necrosis
Bite Symptoms
Most symptoms are very mild, including slight itching, redness, or a tingling sensation. The discomfort typically resolves within a day. Systemic symptoms do not occur.
Bite Treatment
Wash the bite area with soap and water. Apply a cold compress to ease itching. Antihistamines or hydrocortisone cream can help reduce any skin irritation. No further treatment is needed.
Are redback jumping spiders venomous?
Technically yes, but their venom has no significant effect on humans.
Should I be concerned about a redback jumping spider bite?
No, they are harmless and rarely bite. Even if they do, the reaction is very mild.
21. Yellow Garden Spider Bite
The yellow garden spider, also known as the black and yellow argiope or writing spider, is commonly found in gardens and fields. It is large and striking in appearance but non-aggressive and beneficial to gardens due to its pest control habits.
Bite Appearance
The bite, if it occurs, results in a small red welt or raised bump. It may resemble a bee sting in appearance and discomfort.
Bite Identification
- Slightly raised red bump
- Sometimes a small white center
- Occurs on hands or arms when the spider is provoked
- Local irritation only—no ulcer or blister
- Not medically significant
Bite Symptoms
Bites from yellow garden spiders may cause short-term pain or stinging, followed by mild swelling and redness. Symptoms typically disappear within 24–48 hours without complication.
Bite Treatment
Clean the site with soap and water. A cold compress can reduce swelling and discomfort. Pain relievers or antihistamines may be used if needed. No medical treatment is typically required.
Is a yellow garden spider bite dangerous?
No. Their venom is not harmful to humans, and they only bite when threatened.
What should I do if bitten by a yellow garden spider?
Just clean the area and manage symptoms at home. Watch for any signs of infection, though they are rare.
22. Woodlouse Spider Bite
The woodlouse spider is known for its large fangs and reddish-brown body. It hunts woodlice under rocks, logs, and debris. Though its bite can look intimidating, it’s not considered dangerous to humans.
Bite Appearance
A bite may appear as a red, slightly swollen bump. In some cases, the puncture marks from the spider’s large fangs may be visible. It might resemble a wasp sting and feel tender for a day or two.
Bite Identification
- Red, inflamed bump with possible fang marks
- Typically found on fingers, hands, or feet
- May bruise or develop a firm center
- Slightly painful but not severe
- No spreading necrosis or systemic effects
Bite Symptoms
Initial pain or burning is common, followed by mild swelling and redness. Itching may occur, and in rare cases, the area may form a small scab or develop minor bruising. Symptoms generally resolve in a few days.
Bite Treatment
Wash the bite thoroughly and apply antiseptic. A cold compress may reduce swelling. Pain can be managed with over-the-counter medication. Watch for signs of infection, but further treatment is rarely needed.
Are woodlouse spider bites harmful to people?
No, while their fangs are large and can break the skin, their venom is not dangerous. Most bites are minor and heal without complications in just a few days.
What makes woodlouse spider bites noticeable?
It’s mainly the initial pain due to their strong bite. Because they use their jaws to crush prey, their bite can feel sharp, but the discomfort fades quickly.
23. Tarantula Spider Bite
Tarantulas are large, hairy spiders often kept as exotic pets. Despite their size and appearance, their venom is mild to humans. However, their bite can be painful due to their strong fangs.
Bite Appearance
The bite looks like two puncture wounds, often red and swollen. In some cases, the area may become firm or mildly bruised. Hair shedding may also irritate nearby skin.
Bite Identification
- Two fang puncture marks
- Swollen, red, and tender area
- Often on fingers or hands (in pet owners)
- May cause itching or mild rash if hairs get on skin
- No necrosis or blistering typically
Bite Symptoms
Most tarantula bites cause localized pain and swelling, similar to a bee sting. Some people may experience itching, redness, or skin irritation from the spider’s urticating hairs. Systemic symptoms are extremely rare.
Bite Treatment
Clean the wound thoroughly and apply a cool compress. If skin irritation is caused by hairs, wash the area gently and avoid scratching. Pain relievers or antihistamines may be helpful. Medical treatment is rarely needed.
Can a tarantula bite cause serious harm?
No, unless you have an allergy or the wound gets infected. The bite can be painful, but it doesn’t pose a serious threat to healthy individuals.
Are tarantulas aggressive toward humans?
Not usually. They bite only in self-defense when threatened or mishandled. Most tarantulas prefer to run or flick hairs before biting.
24. Cellar Spider Bite
Cellar spiders, often called “daddy longlegs” (not to be confused with harvestmen), are commonly found in basements, garages, and ceiling corners. There’s a widespread myth that they are the most venomous spiders, but this is false. Their bite is harmless to humans.
Bite Appearance
If a cellar spider does bite, the result is usually a very small red bump or minor irritation. It may go unnoticed and is rarely painful.
Bite Identification
- Tiny, almost invisible red bump
- No blister, ulcer, or puncture marks
- Appears on exposed skin (arms, legs, hands)
- No swelling or necrosis
- Often confused with minor bug bites
Bite Symptoms
Mild symptoms may include slight itching or sensitivity. Most people never realize they’ve been bitten. There are no known cases of medically significant symptoms from cellar spider bites.
Bite Treatment
Basic cleaning with soap and water is all that’s needed. If itching occurs, an antihistamine cream can be used. The bite heals quickly on its own.
Do cellar spiders have dangerous venom?
No, this is a myth. Their venom is not strong enough to harm humans, and their fangs can barely pierce human skin.
Why do people think cellar spiders are so dangerous?
It’s a long-standing myth. Some believed they were highly venomous but couldn’t bite humans—but research has shown they are harmless both in venom and bite capability.
25. Huntsman Spider Bite
Huntsman spiders are large, fast-moving spiders known for their long legs and crab-like appearance. Found mostly in Australia and Asia, they may look intimidating but are not considered dangerous to humans.
Bite Appearance
The bite is typically red, slightly swollen, and may feel warm. It resembles a bee sting or minor skin puncture and can be tender for a few days.
Bite Identification
- Red, swollen bump with possible fang marks
- Appears commonly on hands, arms, or legs
- No blistering or tissue damage
- Usually dry and firm rather than weepy or ulcerated
- Often occurs after accidental contact indoors
Bite Symptoms
Pain at the bite site is usually immediate but manageable. Some individuals report mild nausea, headache, or fatigue. Swelling may last 1–3 days, and itching is common as the bite heals.
Bite Treatment
Clean the bite thoroughly. Apply a cold pack to reduce swelling and take pain relief if needed. Antihistamines can ease itching. Seek medical advice only if an allergic reaction or infection develops.
Are huntsman spider bites venomous?
Yes, but not dangerously so. The venom is mild and mainly used to subdue prey. For humans, it causes localized symptoms that resolve within a few days.
Should I be scared of huntsman spiders?
No—they’re more of a nuisance than a danger. They rarely bite and prefer to escape rather than attack when disturbed.
26. Grass Spider Bite
Grass spiders are known for their funnel-shaped webs and quick movements. They are commonly found in gardens, lawns, and bushes. While they can bite if handled or threatened, their venom is not harmful to humans.
Bite Appearance
A grass spider bite usually appears as a small red bump, often mistaken for a mosquito bite. There may be very mild swelling or irritation.
Bite Identification
- Small red or pink bump
- No ulcer, blister, or puncture marks usually visible
- Typically found on hands, legs, or forearms
- Minimal inflammation
- Often mistaken for other insect bites
Bite Symptoms
Most bites cause little to no pain. Some people may feel a slight burning, itching, or tingling at the bite site. Symptoms are localized and fade within a day or two.
Bite Treatment
Wash the area with soap and water. Apply a cold compress to ease itching or irritation. Antihistamine cream or an oral tablet may help if there is an allergic response. No further treatment is needed.
Are grass spider bites dangerous?
No, they are not dangerous. Their venom is not medically significant, and their bite reactions are extremely mild in most cases.
Why do grass spiders bite humans?
They usually don’t. Bites occur only when the spider is trapped against the skin or handled roughly, which they perceive as a threat.
27. Recluse Spider Bite (General)
While the brown recluse is the most well-known, other recluse species (like the Chilean or desert recluse) also exist. These spiders are shy but deliver venom that can cause tissue damage. Bites should be taken seriously and monitored carefully.
Bite Appearance
The bite may start as a red bump and develop into a blister or ulcer. A classic “bullseye” appearance may emerge, with a pale center and dark outer ring.
Bite Identification
- Central blister with surrounding redness
- Bullseye pattern often visible
- Most common on limbs or torso
- May develop a black, necrotic center in severe cases
- Often not painful at first but worsens over time
Bite Symptoms
Initial symptoms may be mild, with pain increasing after a few hours. The area may become itchy or numb, followed by blistering or tissue decay. Some individuals experience fever, chills, or body aches. If untreated, necrosis can spread, leading to long-term damage.
Recluse Spider Bite Stages
- Initial Stage (0–6 hours): Red bump, often painless
- Blister Stage (6–24 hours): Blister forms, pain and swelling increase
- Necrotic Stage (1–5 days): Tissue damage may develop, with blackened center
- Healing Stage (1–8 weeks): Gradual scabbing and recovery; may leave a scar
Bite Treatment
Clean the wound thoroughly. Avoid applying heat. Elevate the area and apply cool compresses. Medical care is crucial if the area worsens, shows signs of necrosis, or if symptoms spread systemically. Severe bites may require antibiotics, wound care, or even surgery.
Can all recluse spider bites cause necrosis?
Not always. While necrosis is a risk, many recluse bites remain mild and heal with little intervention—especially if treated early.
What should I do immediately after a recluse bite?
Clean the area, apply a cold compress, and monitor closely. Seek medical attention if symptoms escalate or the wound enlarges or darkens.
28. Black Jumping Spider Bite
Black jumping spiders are small, active hunters with compact black bodies and often iridescent green or blue mouthparts. Common in gardens, windowsills, and walls, they are curious but not aggressive. Their bite is rare and generally harmless.
Bite Appearance
A bite may look like a tiny red bump, similar to a mild ant or mosquito bite. There may be slight swelling or a pale center, but it typically fades quickly.
Bite Identification
- Small, reddish or pink bump
- Mild swelling or irritation
- Typically on hands, arms, or neck
- No spreading discoloration or ulcer
- Often painless or briefly itchy
Bite Symptoms
Symptoms are minor—itching, redness, or a light stinging feeling. Pain is very mild and disappears within hours. Rarely, someone sensitive may experience slight fatigue or a headache, but these symptoms are not common.
Bite Treatment
Clean the area with soap and water. Apply a cold compress to relieve swelling or itching. An antihistamine can help if irritation persists. The bite heals on its own within 24–48 hours.
Are black jumping spiders aggressive?
No, they are very docile. They may approach out of curiosity, but they rarely bite and prefer to escape rather than attack.
How bad is a black jumping spider bite?
It’s extremely mild. The bite may cause slight discomfort at most, with no lasting effects or need for medical care.
29. Australian Funnel-Web Spider Bite
The Australian funnel-web spider is among the world’s deadliest spiders, particularly the male Sydney funnel-web. Found in New South Wales and surrounding regions, its venom is highly toxic and a bite requires immediate emergency attention.
Bite Appearance
The bite site may appear as two deep puncture marks. Swelling, redness, and localized sweating often occur quickly. The site may become firm and warm, but visible signs may be minimal in early stages.
Bite Identification
- Two distinct fang puncture marks
- Rapid redness and swelling
- Localized sweating or goosebumps near the bite
- May feel numb or intensely painful
- Often on feet, hands, or legs from outdoor contact
Bite Symptoms
Symptoms can begin within 15–30 minutes and progress rapidly. Common signs include intense pain, muscle twitching, vomiting, difficulty breathing, confusion, and drooling. Children are especially vulnerable, and death can occur within hours without antivenom.
Funnel-Web Spider Bite Stages
- Initial Stage (0–30 minutes): Sharp local pain, rapid swelling
- Neurotoxic Stage (30 min–2 hours): Salivation, nausea, twitching, agitation
- Severe Stage (2–6 hours): Respiratory failure, coma, possible death
- Recovery Stage (with antivenom): Gradual improvement; hospitalization required
Bite Treatment
Call emergency services immediately. Apply a pressure immobilization bandage to the affected limb and keep the person still and calm. Do not wash the bite (venom trace is used to identify the species). Administer antivenom as soon as available in a medical setting.
How serious is a bite from an Australian funnel-web spider?
Extremely serious. Without urgent medical care, the bite can be fatal, especially in children or those with weakened health.
What’s the first step after a funnel-web bite?
Apply a firm pressure bandage and immobilize the limb. Then, seek emergency help immediately. Time is critical in treating this bite.
30. Brown Widow Spider Bite
The brown widow spider, a relative of the black widow, is found in warm climates including the southern United States and parts of Africa and Asia. It has a lighter, mottled brown body with an orange hourglass mark. Though its venom is similar to the black widow’s, it is much less potent.
Bite Appearance
The bite site usually shows mild redness, swelling, and occasionally a pale or firm center. Some individuals may develop a small blister, but necrosis is very rare.
Bite Identification
- Two faint puncture marks
- Slight redness with or without blistering
- Mild swelling and warmth at the site
- Most commonly on hands, legs, or arms
- Often mistaken for a bee sting or bug bite
Bite Symptoms
Pain is typically less severe than with black widow bites. Some people may feel localized burning or tingling, along with mild muscle discomfort. Systemic symptoms like nausea or sweating are rare and usually short-lived when they do occur.
Bite Treatment
Wash the area gently with soap and water. Apply a cold compress to minimize pain or swelling. Pain relievers such as ibuprofen can help with discomfort. Severe symptoms are rare but should be treated by a doctor if they appear.
Is the brown widow spider dangerous?
Not significantly. While it has venom, its bite is rarely medically serious. Most bites result in minor discomfort and heal quickly.
How does a brown widow bite compare to a black widow?
The brown widow’s venom is less toxic. The symptoms are usually localized and milder, and serious reactions are extremely rare.
31. Yellow Sac Spider Bite
Yellow sac spiders are small, pale yellow or light green spiders commonly found indoors and in gardens. They are active hunters that may bite when trapped in clothing or bedding. While they are mildly venomous, their bites are usually not dangerous.
Bite Appearance
A bite from a yellow sac spider often begins as a small, red raised bump that may develop a blister. In some cases, the center becomes pale or slightly ulcerated, resembling a minor skin infection.
Bite Identification
- Small red bump, sometimes with a pale or blistered center
- Commonly occurs on upper arms, neck, or thighs
- Mild swelling and tenderness
- Occasionally mistaken for early-stage brown recluse bites
Bite Symptoms
Most bites cause mild burning, stinging, or itching. Symptoms may worsen over a few hours and occasionally include fatigue or headache. In rare cases, minor skin breakdown or infection occurs, but serious reactions are uncommon.
Bite Treatment
Clean the area with soap and water. Apply a cool compress and consider antihistamines or topical creams for itching. If the wound worsens or becomes infected, consult a doctor.
Do yellow sac spider bites cause necrosis?
Only mildly, and rarely. While their venom can cause local skin irritation, serious tissue damage is uncommon and much less severe than with recluse bites.
How long does a yellow sac spider bite take to heal?
Most heal within 7–10 days without complications. Any scab or skin irritation typically fades with time.
32. White-Tailed Spider Bite
The white-tailed spider is native to Australia and New Zealand and is often found indoors, particularly in clothing, towels, and bedding. It’s known for its reddish-gray body and a distinct white spot on the end of its abdomen. Its bite has been controversially linked to skin ulcers, though evidence of severe reactions is limited.
Bite Appearance
The bite often begins as a red, itchy lump. It may develop into a blister or ulcer, but in most cases, it remains mild and heals without complication. Some people report a burning sensation soon after being bitten.
Bite Identification
- Red, irritated bump or blister
- Mild swelling and itching
- Typically on legs, arms, or torso
- May resemble an insect bite or mild sting
- Sometimes mistaken for a recluse bite due to similar appearance
Bite Symptoms
The most common symptoms include burning, swelling, and itchiness at the bite site. In rare cases, individuals may experience blistering or minor ulceration. There is no confirmed scientific link between white-tailed spider bites and widespread necrosis, despite public perception.
Bite Treatment
Clean the bite thoroughly with warm water and soap. Apply a cold compress to reduce pain or itching. Use antihistamines or anti-inflammatory creams for relief. Seek medical attention if the wound worsens or shows signs of infection.
Can white-tailed spider bites cause necrosis?
There is no scientific consensus that necrosis is directly caused by these spiders. Most bites are minor and heal without serious tissue damage.
What should I do if I suspect a white-tailed spider bite?
Clean the wound, monitor it for signs of infection, and manage symptoms with basic care. Medical help is advised only if the bite worsens significantly.
33. Red-Backed Jumping Spider Bite
The red-backed jumping spider is a small, vibrantly colored spider often found in gardens, woodpiles, or fences. It is not related to the redback widow. Despite its bold appearance and active behavior, it poses no medical threat to humans.
Bite Appearance
The bite appears as a tiny red bump, often with slight swelling. It may be itchy or mildly irritated, but it usually goes unnoticed or is mistaken for a mild insect bite.
Bite Identification
- Small pink or red bump
- Mild swelling or warmth at the site
- Typically occurs on fingers, hands, or forearms
- No blister, ulcer, or bullseye pattern
- No lasting mark or discoloration
Bite Symptoms
Mild symptoms may include slight itching, a stinging sensation, or tenderness. These effects are short-lived, and the bite heals quickly without complications.
Bite Treatment
Rinse the bite area with soap and water. Apply an ice pack if there’s any swelling or discomfort. Over-the-counter antihistamines may help with itching, but no further treatment is typically necessary.
Are red-backed jumping spider bites venomous?
Yes, but only mildly. Their venom is not harmful to humans and causes only mild irritation in rare bite cases.
Should I be worried if I find one in my home?
Not at all. They are non-aggressive and helpful in controlling insect populations. Just relocate them if necessary.
34. False Black Widow Spider Bite
The false black widow (Steatoda grossa) resembles the true black widow but is less harmful. Found worldwide, especially in homes, basements, and sheds, it’s a shy spider that only bites when disturbed. Its venom is mildly neurotoxic but rarely dangerous.
Bite Appearance
The bite may appear as a red or purplish bump, often with a pale center. Swelling and a tight, warm sensation may occur, and a blister or scab can develop in moderate cases.
Bite Identification
- Reddish bump with possible central blister
- Mild to moderate swelling
- Often on hands, arms, or near clothing folds
- May develop a scab or hardened center
- Resembles a mild infection or boil
Bite Symptoms
Symptoms vary: some people feel only mild discomfort, while others experience local pain, nausea, headache, or dizziness. Rarely, the bite causes muscle cramps or fatigue. Most symptoms resolve within a few days to a week.
Bite Treatment
Clean the area and apply cold packs to ease pain and inflammation. Use antihistamines or pain relievers if necessary. Medical attention may be needed if symptoms persist or worsen, but serious complications are rare.
How can you tell a false black widow bite from a true black widow bite?
False black widow bites are generally less painful and don’t produce strong systemic effects like severe cramping or hypertension. Symptoms are mostly local and short-term.
Is a false black widow spider bite dangerous?
Not usually. While the bite can be uncomfortable, it’s rarely a medical emergency and typically heals on its own.
35. Red-Legged Purseweb Spider Bite
The red-legged purseweb spider is a rare, primitive spider found in parts of the southeastern United States. It builds tube-shaped silk retreats along the base of trees and bushes. While it looks intimidating, bites are very rare and not medically significant.
Bite Appearance
If a bite occurs, it may result in a firm, red bump with minimal swelling. There may be mild sensitivity, but the bite often resolves without much discomfort.
Bite Identification
- Small red or pink bump
- Minimal swelling or irritation
- No puncture marks or blistering
- Typically on hands or lower limbs
- Bite is often unnoticed or mistaken for a minor scratch
Bite Symptoms
Symptoms are typically limited to mild tenderness or itching. Some people may feel a slight stinging or pressure at the time of the bite, but systemic reactions do not occur.
Bite Treatment
Wash the area with soap and water. Apply a cold compress if swelling develops. Antihistamines or topical creams can relieve itching. No further treatment is generally needed.
Are purseweb spiders aggressive?
No, they are reclusive and prefer to stay hidden in their silk tubes. Bites happen only when they are directly handled or provoked.
Is the bite from a red-legged purseweb spider venomous?
Yes, but the venom is harmless to humans. It may subdue prey effectively but causes no serious effects in people.
36. Yellow Orb Weaver Spider Bite
Yellow orb weavers, also known as Argiope aurantia or writing spiders, are large, striking spiders commonly found in gardens, fields, and hedges. Known for their distinctive black and yellow coloring and spiral-shaped webs, they are not dangerous to humans.
Bite Appearance
If bitten, the site may show a small red bump, resembling a bee or ant sting. Swelling is minor, and in most cases, the area calms down within a few hours.
Bite Identification
- Small, round red bump
- Possible slight swelling or warmth
- Usually on arms, hands, or legs
- No blister, necrosis, or puncture marks
- Often confused with mild insect bites
Bite Symptoms
Symptoms are limited to localized itching, redness, and mild discomfort. Rarely, a person may feel a short-lived burning sensation. There are no systemic or long-term symptoms associated with their bites.
Bite Treatment
Rinse the area with warm water and soap. Use a cold compress to reduce itching or swelling. Antihistamines or hydrocortisone cream may be used for added relief. The bite typically resolves on its own within 24–48 hours.
Are yellow orb weaver spiders venomous?
Yes, but not in a dangerous way. Their venom is used to subdue insects and is not harmful to humans beyond minor irritation.
Should I remove yellow orb weavers from my garden?
Only if necessary. They are beneficial predators and help control pest insect populations naturally.
37. Sydney Brown Trapdoor Spider Bite
The Sydney brown trapdoor spider is a stocky, burrowing species found in eastern Australia. Though related to more dangerous spiders like the funnel-web, its bite is not considered life-threatening. However, it can still be painful and cause noticeable local symptoms.
Bite Appearance
The bite area typically shows two puncture marks with noticeable redness and swelling. It may appear similar to a wasp sting or bee sting, sometimes with a firm raised center.
Bite Identification
- Two small fang punctures
- Red, swollen area with tenderness
- Usually located on feet, legs, or hands
- May feel hot or tingly
- Sometimes bruising may occur
Bite Symptoms
Pain at the bite site is often sharp and may persist for several hours. Some individuals may experience mild nausea, fatigue, or sweating. Serious reactions are uncommon but have been reported in more sensitive individuals.
Bite Treatment
Clean the wound with soap and water and apply a cold pack. Painkillers may be used to manage discomfort. Seek medical attention if swelling intensifies, or if systemic symptoms (nausea, fever) appear.
Is a Sydney brown trapdoor spider bite dangerous?
Not typically. The bite is painful, but there are no confirmed fatalities or serious systemic reactions with proper first aid.
How long do symptoms last after a trapdoor spider bite?
Mild symptoms may last a few hours to two days. In rare cases, localized tenderness can linger for up to a week.
