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A member asked:
Im a teenager and recently i noticed a faint one line ridge on my thumb fingernail. is that normal?
A doctor has provided 1 answer
Mostly: Vertical (from base to edge) Fingernail ridges are more common as a person ages. Rarely, a person will show many ridges running horizontally (from side to side) which may indicate hyperthyroidism, dietary deficiencies (Magnesium, B vitamins) or diabetes. If you have any other symptoms, see your Dr for a full workup.
Answered 5/28/2020
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