A member asked:

I have a thin black line on my right thumbnail. its been there a few weeks. its right down the middle from cuticle to the tip. could something other than melanoma cause this? i dont recall injuring it.

A doctor has provided 1 answer

See below: Visit this site for into on this topic: https://www.medicalnewstoday.com/articles/320687.php

Answered 8/22/2020

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