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A member asked:

What could cause a dark spot on the toenail?

A doctor has provided 1 answer

Several things: Fungus, blood under nail.

Dr Mallia agreed

Answered 12/3/2018

5.6k views

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Trimmed toenails-noticed dark grey raised spot next to big toenail-slight pain, think it was ingrown nail. Trimmed off spot of skin, it bled a bit, blood went deep, and a tiny bit of clear liquid (pus?). Cleaned w/isop. alcohol + bandaid. Infected?

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