A member asked:

My finger nails and toes started peeling off.i can see layers on the nails. also on index finger theres this vertical blck line that nvr go away. y?

5 doctors weighed in across 2 answers
Dr. Heidi Fowler answered

Specializes in Psychiatry

Please see your: Dermatologist. If the black line runs along the length of the index finger nail - need to rule out serious causes. Take care.

Answered 9/21/2019

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Vertical black line: Finger & toe nails are very specialized keratin that is laid down in layers. These layers can separate and fray starting at the end. The vertical black line that does not go away - does not grow out? Have you had this many years? Do you have other nails the same way? Are you african american (more common). If this line is fairly young it should be seen as it can be melanoma.

Answered 1/15/2016

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