A member asked:

I have a faint dark line down my right thumbnail. i googled of course and found some scary results, would prefer insight from credible resources.

A doctor has provided 1 answer
Dr. Richard Zimon answered

Specializes in Internal Medicine

If it's ON ONE SIDE: and not in both hands...and if its JUST the thumb nail RELAX! Unlikely it represents a serious metabolic, embolic , Vit Deficiency etc etc etc Hope this helps DR Z

Answered 5/28/2016

1.3k views

Thank

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