A member asked:

A year ago i found a brown line in my thumb finger nail. it was almost transparent and now it has become darker. melanoma?

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

Can't diagnose: Dark lines in black people over age 20 is usually normal. Black stripes down one nail could be a subungual hematoma. Red or brown streaks could be splinter hemorrhages. However, Melanoma can sometimes present as dark stripes on a nail.

Answered 1/14/2020

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