A member asked:

Would ringworm show up on basic blood work?was normal. i have spots that look like it but they go away with clotrimazol 1% which fixes athletes foot, jock itch, and ringworm. are they something to ask my pcp about or since i fixed it im fine.

3 doctors weighed in across 2 answers

No: Ringworm is actually fungus that lives off old dead skin cells that have not shed. As such it never stimulates the deeper areas of the tissue where blood cells move, so nothing would show up on a common blood test. Some ringworm occasionally triggers an allergy like response & itching at which point the blood may show a vague, non-specific change.

Answered 8/26/2020

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Watch and wait: If the lesions have disappeared, you may watch and wait. If the lesions recur, then it may be useful to see your doctor. Wish you good health!

Answered 8/29/2020

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