Spider Venom

Spider Bite

Spider Bite

 

-Spider Bite

Is this your child’s symptom?

 

  • Bite from a spider

-Symptoms of a Spider Bite

  • Most spider bites cause local pain, redness and swelling. It’s much like a bee sting reaction.
  • A few spiders (such as the Black Widow) can cause a more severe reaction.
  • Helpful if spider seen on the skin or around the child

-Cause of Spider Bite Reactions

  • Most spiders have tiny fangs. They inject venom into the skin.
  • The venom is what causes all the symptoms.

-Types of Spider Bites

-Black Widow Spider Bite

  • A shiny, jet-black spider with long legs (total size 1 inch or 25 mm).
  • A red (or orange) hourglass-shaped marking on its under-side.
  • Causes immediate local pain and swelling.
  • Sometimes, you can see 2 fang marks at the bite site.
  • Severe muscle cramps (especially stomach cramps) occur within 1 to 6 hours. These last 24 to 48 hours.
  • Spider Venom
  • Rarely causes death. (Exception: bitten by several spiders or small child is bitten)
  • Note: Many are dry bites because the fangs are small.
  • The brown widow spider is related to the black widow. It is found in southern US.
  • Brown widow spider bites are treated the same as black widow bites.

-Brown Recluse Spider Bite

  • A brown spider with long legs (total size ½ inch or 12 mm).
  • A dark violin shaped marking on top of its head.
  • Causes pain at the bite. Blisters form within 4 to 8 hours.
  • The center becomes bluish and depressed (crater-like) over 2 to 3 days.
  • Skin damage may require skin grafting in 10% of cases.
  • Other symptoms such as fever, vomiting, muscle pain can occur. No life-threatening symptoms occur.
  • Brown recluse spiders are hard to identify. If you can, bring the spider along in a jar.
  • Spider Venom
    • More than 50 spiders in the U.S. have venom. Their bites cause reactions that are not serious. This includes pain or redness at the bite site.
    • The bites are painful and swollen. This lasts for 1 or 2 days. They can feel and look like a bee sting.
    • Some single, unexplained, tender bites that occur during the night are due to spiders.

    Spider Bite

    • Trouble breathing or wheezing
    • Passed out (fainted) or too weak to stand
    • Spider Venom

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