A member asked:

I have a tiny black spot under my nail left thumb, what can it be?

A doctor has provided 1 answer
Dr. Geoffrey Rutledge answered

Specializes in Internal Medicine

Subungual hematoma: A small amount of bleeding under the nail will leave a small black area - these usually grow out gradually over time as the nail grows.

Answered 7/28/2014

4.4k views

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