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A female 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?

1 doctor answer2 doctors weighed in
Dr. Heidi Fowler
Psychiatry 25 years experience
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.

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Last updated Jan 14, 2020

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