2 doctors weighed in:
What are dark lines in my finger nails?
2 doctors weighed in

Dr. Jerome Litt
Dermatology
1 doctor agrees
In brief: DARK LINES NAILS
In light-skinned people, dark lines can be due to medications, or depending how long it has been there, and on how many nails are involved, could be a rather serious tumor called melanoma.
If you are dark-skinned, it could be a normal process, probably inherited. Your best bet is to see a dermatologist if this is new & something that has been worrying you.

In brief: DARK LINES NAILS
In light-skinned people, dark lines can be due to medications, or depending how long it has been there, and on how many nails are involved, could be a rather serious tumor called melanoma.
If you are dark-skinned, it could be a normal process, probably inherited. Your best bet is to see a dermatologist if this is new & something that has been worrying you.
Dr. Jerome Litt
Dr. Jerome Litt
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