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6.09 Enterobiasis (Pinworm or Threadworm)


The patient complains of perianal itching which is worse at night, and may contribute to insomnia or superinfection of the excoriated perianal skin. Often, an entire family is affected.

What to do:


Pinworms mostly live in the colon, and females migrate down to the perianal skin to lay eggs at night. Eggs on contaminated fingers re-enter via the mouth, but remain viable for several days on surfaces around the house. Perhaps 10% of the U.S. population harbors pinworms, especially children.

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from Buttaravoli & Stair: COMMON SIMPLE EMERGENCIES
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Craig Feied, MD
Mark Smith, MD
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Michael Gillam, MD