Image: Melanonychia Striata - Merck Manuals Consumer Version

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Health Topics & Chapters

Melanonychia Striata

Melanonychia striata are gray, brown, or black lines in the nail plate caused by the normal brown skin pigment, melanin. In this image, a line is most noticeable in the nail of the left ring finger (arrow).

Image provided by Chris G. Adigun, MD.

In these topics

Deformities, Dystrophies, and Discoloration of the Nails

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