A member asked:

Hello im 18 i have like brown or black colored faint lines on two toe nails one is on a big toe and one is on a small toe and the small toe has like 2 faint lines on the nail im kind of worried because idk what it can be?

A doctor has provided 1 answer

You didn't specify whether the lines run across the nails or from matrix to tip. The latter is more common, and if they are narrow, usually indicates a small benign mole growing in the matrix. If they are wide, or getting wider or darker, see a dermatologist to make sure they are nothing to worry about.

Answered 1/6/2022

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