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Dangerous spiders in Upstate SC

Black Widow spider - Public Domain https://pixabay.com/en/spider-black-widow-venomous-2282084/

There are two spiders found in Upstate SC that are dangerous to humans.

They are the black widow and brown recluse.

If you are bitten by either of these spiders you should seek medical treatment immediately.


Black Widow spider – Public Domain https://pixabay.com/en/spider-black-widow-venomous-2282084/

The National Institutes of Health say only female black widows are dangerous and their bite can cause:

  • Severe pain
  • Muscle cramping
  • Abdominal and back pain
  • Hypertension
  • Shortness of breath
  • Nausea and vomiting
  • Headache

There is antivenom, but it is rarely used because of the risk of hypersensitivity.

They can be identified by their shiny black body and a red or orange hourglass pattern on their stomach.

Black widows are usually found in garages, wood piles and outbuildings. It is uncommon to find one in your home.


Brown Recluse spider – Public Domain public domain https://en.wikipedia.org/wiki/Brown_recluse_spider#/media/File:Brown-recluse-coin-edit.jpg

You may not feel a brown recluses bite when it happens, but it’s toxin is devastating to skin and flesh.

It can cause necrotic skin ulcers that have to be removed with surgery.

The brown recluse is easily identified by the brown, violin shaped marking on its back. It is also called the fiddleback spider.

It is found in closets, basements and cellars in boxes, clothing, shoes, furniture, bedding, and other dry, dark, warm areas.

Bites usually happen when people put on clothes or shoes with the spider inside.

Brown recluses are not aggressive, but they will bite if the are provoked or squished.

Necrosis from the bite spreads a few days after the bite. The area will being to turn red, then white, then blue.

Acute problems like renal failure can result, according to NIH.

Antivenom can reduce the size of the necrotic area and the sooner it is administer, the less necrotic damage will result.

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