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A 33-year-old male asked:

2 days ago i got2 thin black line beneath my left thumb nail, i go to dermatologist to see if it melanoma.she think the lines too vague that it isnt , she said if it is, it should be thick&darker.t/f?

3 doctor answers3 doctors weighed in
Dr. Felizardo Belga
General Practice 63 years experience
>Melanoma/: Get a 2nd dermatologist opinion. You will never go wrong.
Dr. Lester Thompson
Pathology 33 years experience
Injury most likely: A 2 day onset is not usually the case for melanoma. It forms more of a irregular patch or geographic form, rather than a line. Nail (sub-ungual) melanoma is very uncommon, and for a 33 year old would be exceptional. Unless you have some unusual inherited disorder, this is not likely. Maybe it is related to an injury, possible infection, bleeding, etc. Don't worry.
Dr. Otto Placik
Plastic Surgery 34 years experience
True: Melanoma rarely develops that quickly (in 2 days). A biopsy can always be performed to confirm this.

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Last updated Sep 28, 2016

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