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A 46-year-old member asked:

What is white crest of a fingernail?

1 doctor answer1 doctor weighed in
Dr. Dan Fisher
Internal Medicine 27 years experience
Lunula: I believe you are referring to the lunula or "little moon" seen under your fingernail most prominently on your thumb. It is an area of less developed collagen and has little medical significance although abnormailties may be associated with systemic disease.

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Last updated Jul 21, 2018

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