A member asked:

I have a vertical crease on my thumbnail which has a 1/16 inch size brown spot near the top of it. this discoloration sound right for a nail crease?

A doctor has provided 1 answer
Dr. Jason Siefferman answered

Specializes in Pain Management

See derm: It's possible to have melanoma even under the nail.

Answered 9/28/2016

4.4k views

Thank

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