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A member asked:
I have a persistent thin black line that runs the length of my nail. other than subungual melanoma, what might this represent?
7 doctors weighed in across 3 answers
Need to be checked.: Any preceding trauma? Any trouble with other nails? Otherwise, hard to say without examining the nail. This might be evaluated by your pcp or dermatologist.
Answered 5/2/2015
6.1k views
Melanonychia: Melanonychia is black line that runs the nail. It can represent many diagnosis, and subungal melanoma is one of them. It could also be a splinter hemorrhage which can be benign or as a sign of a serious heart condition. Other causes of the black line could be a fungal or bacterial infection, and and many others possibilities. A dermatologist can help you figure out what's going on.
Answered 3/24/2016
6.1k views
Trauma?: But best to have your friendly dermatologist take a look.
Answered 9/28/2016
5.2k views
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