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A member asked:

Hi i used to bite my nails when i was 10 or 11, now i am 16 and i have just realized both of my thumb nails have turned the color dark brownish? help!

A doctor has provided 1 answer

TRAUMA from BITING: Nails became brownish from nail biting due to constant trauma. It will heal if left alone. Soak in warm water to restore circulation.

Answered 1/5/2014

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