Though many people are afraid of spiders, they rarely bite people unless threatened. Most spider bites are harmless. Occasionally, spider bites can cause allergic reactions. And bites by the venomous black widow and brown recluse spiders can be very dangerous to people.

If you are bitten by a spider, you may see a reaction similar to that of a bee sting, including redness, pain and swelling at the site. To treat a spider bite:

  • Wash the area well with soap and water
  • Apply an ice pack or a wet compress to the area
  • Take over-the-counter pain medicine, if needed
  • Consider using antihistamines for severe swelling
  • Seek medical treatment for small children and adults with severe symptoms

Symptoms of Spider Bites

The following features are indicative of Spider Bites:
  • pain
  • abdominal cramping
  • redness
  • swelling
  • sweating
  • fever
  • chills
  • nausea
  • vomiting
It is possible that Spider Bites shows no physical symptoms and still is present in a patient.

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Common Causes of Spider Bites

The following are the most common causes of Spider Bites:
  • injected spider venom

Risk Factors for Spider Bites

The following factors may increase the likelihood of Spider Bites:
  • living in warm climates
  • those living in southwestern states of US

Prevention of Spider Bites

Yes, it may be possible to prevent Spider Bites. Prevention may be possible by doing the following:
  • use insect repellents
  • wear a long-sleeve shirt, hat, long pants tucked into socks, gloves and boots when handling stored boxes or firewood
  • install tight fitting screens on windows and doors and sealing cracks where spiders can come in
  • do not store firewood against the house
  • inspect and shake out clothing and shoes that have been unused for a while before getting dressed

Occurrence of Spider Bites

Number of Cases

The following are the number of Spider Bites cases seen each year worldwide:
  • Rare between 10K - 50K cases

Common Age Group

Spider Bites can occur at any age.

Common Gender

Spider Bites can occur in any gender.

Lab Tests and Procedures for Diagnosis of Spider Bites

The following lab tests and procedures are used to detect Spider Bites:
  • Physical exam: To evaluate the signs and symptoms of spider bites

Doctor for Diagnosis of Spider Bites

Patients should visit the following specialists if they have symptoms of Spider Bites:
  • Emergency medicine specialist

Complications of Spider Bites if untreated

Yes, Spider Bites causes complications if it is not treated. Below is the list of complications and problems that may arise if Spider Bites is left untreated:
  • high blood pressure
  • can be fatal

Self-care for Spider Bites

The following self-care actions or lifestyle changes may help in the treatment or management of Spider Bites:
  • Washing the wound with soap and water: To lower inflammation

Alternative Medicine for Treatment of Spider Bites

The following alternate medicine and therapies are known to help in the treatment or management of Spider Bites:
  • Apply cool compress: Helps in lowering pain and swelling

Time for Treatment of Spider Bites

While time-period of treatment for each patient may vary, below is the typical time-period for Spider Bites to resolve if treated properly under an expert supervision:
  • Within 1 week

Last updated date

This page was last updated on 2/04/2019.
This page provides information for Spider Bites.
Animal Bites
Insect Bites and Stings
Tick Bites

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