Scabies is diagnosed most often by looking at the rash. If necessary, skin scrapings can be tested for the presence of the mites or their eggs. However, it is possible to have a test come back negative and still be infested.

Pubic lice ("Crabs") are diagnosed by a visual exam. While live lice may not be seen, the presence of nits (eggs) is telling enough and no other testing is needed.

Worried you might have an STD?

Getting tested is not only quick and easy, it is the only way to know for sure if you do or do not have an STD. Don't risk your health. Get tested today!

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Mark Riegel, MD
Mark Riegel, MD
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Do I Have Scabies, Lice, and Crabs

Find out whether or not you have Scabies, Lice or Crabs and what STD test is recommended using our anonymous symptom checker. Get your recommendations now!

Scabies, Lice, and Crabs Symptom Checker