A member asked:

My question is there is this fainted black vertical line or streak on my right second toenail next to my big toe. i'm currently a little obese and have signs around my body that show it. i'm a 16 hispanic female and around 120lbs?

3 doctors weighed in across 2 answers
Dr. Grace Torres-hodges answered

Specializes in Podiatry

Get it checked: A faint black vertical line or streak on a toenail can be a warning sign of a more serious condition. This needs to be evaluated because cancers of the nail can present themselves like this. A nail biopsy is the only way to determine this. Go get this checked. It is not always just a bruise.

Answered 11/20/2020

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It depends: Sometimes the vertical black line can be a normal artifact and is something that happens, sometimes after a viral illness or inflammatory issue. However there are some inflammatory disorders and a few serious conditions where a black vertical nail line is one of the signs. Dermatology should have a look just to make sure.

Answered 11/21/2020

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