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Brown Recluse

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Image -- Biohazard Overview

The brown recluse spider lives in the Southern United States.  There are ten different Recluse species, six of which are confirmed to be poisonous.  The spiders are tan to brown and most species exhibit a violin-shaped marking on the top of the cephalothorax.  They tend to live in dark dry spaces such as attics, closets and wood piles, and generally they are not aggressive but will bite when forced to.

Image of the Brown Recluse spider Map of Brown Recluse Range

Brown Recluse Range Map

Close-up image showing the violin pattern on the spider's cephalothorax.
The Brown Recluse spider and a close-up showing the violin pattern on the spider's cephalothorax

 

Symptoms

    The bite generally causes some mild stinging or burning and the surrounding region will usually form a surprisingly large ulcer of dead tissue  within several hours.  The initial lesion may be red, or white and may later may develop a blue-gray halo around the puncture.  Later symptoms may include:

  • fever
  • chills
  • malaise
  • rash
  • nausea
  • vomiting
  • joint pain
  • diarrhea
  • In advanced cases, there may be
    • shock
    • kidney failure
    • seizures
    • coma
    • death (usually in the old and young)

 

Treating

Immobilize the wounded region and apply a cold compress.  Survival past 48 hours usually indicates that recovery will follow.

The symptoms at the time of the bite may not appear to be very severe and may take a while to progress to a more severe state.  Nonetheless, immediate treatment is important to minimize the significant damage that WILL follow.

Image of Sawyer Extractor

© Sawyer Products

Once again, a snakebite kit such as the Sawyer Extractor may help remove some of the venom.

The patient should be taken to an Emergency Room for treatment.  If possible, bring the spider for identification.

With proper care the ulceration may take six weeks to heal, though some never do.  Amputation may be necessary.

Call the Poison Center for additional information.

 

PARENT PAGE Scorpions Black Widow Brown Recluse Ticks Fire Ants Chiggers Bees and Wasps

 

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