What causes vertical black lines on fingernails? - Dr. Aruna Prasad
Black lines on finger nails, there are many reasons for this. It can be hereditary, trauma induced, smoking, some skin conditions like lichen planus, where you can get black lines on the finger nails or it can be due to some drugs. Some medicines, tablets can cause black lines. So best is to consult your dermatologist.
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· Dec 2, 2016