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A member asked:
Hey, i have this grayish line going vertically down my thumb nail. it's very thin and only on my left thumb. should i be concerned? i'm hispanic btw
A doctor has provided 1 answer
Lines: White vertical lines on fingernails, in my experience, usually are not significant or reflective of serious health issues. They may be related to an old injury to the nail bed or to ageing. A dermatologist could advise you best and recommend appropriate tests if deemed advisable.
Answered 5/5/2017
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