Spider bite

Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD's medical weight loss NYC, sleep center NYC
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Spider bite
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Synonyms	N/A
Pronounce	N/A
Specialty	N/A
Symptoms	Pain, redness, swelling, itching
Complications	Necrosis, infection, allergic reaction
Onset	Immediate to several hours after bite
Duration	A few hours to several days
Types	N/A
Causes	Spider venom
Risks	Outdoor activities, handling spiders
Diagnosis	Clinical evaluation, history of exposure
Differential diagnosis	Insect bite, allergic reaction, cellulitis
Prevention	Avoiding contact with spiders, wearing protective clothing
Treatment	Pain relief, antihistamines, antibiotics if infected
Medication	Analgesics, antihistamines, antibiotics
Prognosis	Generally good, but varies with species
Frequency	Common
Deaths	N/A

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A spider bite is an injury resulting from the bite of a spider. The effects of a spider bite can vary significantly depending on the species of spider, the amount of venom injected, and the individual's sensitivity to the venom.

Symptoms

The symptoms of a spider bite can range from mild to severe. Common symptoms include:

• Redness and swelling at the bite site
• Pain and itching
• Muscle pain and cramping
• Sweating
• Headache
• Nausea and vomiting

In some cases, more severe reactions can occur, such as:

• Difficulty breathing
• Severe pain
• Ulceration at the bite site
• Systemic symptoms like fever and chills

Common Venomous Spiders

Some spiders are known for their venomous bites, which can cause significant medical issues. These include:

• Black Widow Spider
• Brown Recluse Spider
• Sydney Funnel-Web Spider
• Brazilian Wandering Spider

Treatment

Treatment for a spider bite depends on the severity of the symptoms and the type of spider involved. General first aid measures include:

• Cleaning the bite area with soap and water
• Applying a cold pack to reduce swelling
• Taking over-the-counter pain relievers

For more severe bites, medical treatment may be necessary, including:

• Administration of antivenom
• Pain management
• Wound care for ulcerated bites

Prevention

Preventing spider bites involves reducing the risk of encountering spiders. Some preventive measures include:

• Keeping living areas clean and free of clutter
• Sealing cracks and gaps in doors and windows
• Using insect repellents
• Wearing protective clothing when in areas known to have venomous spiders

See also

• Venom
• Insect bite
• Antivenom
• Arachnid
• First aid

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