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What causes dark bands on the nails?

Jan 2014
User rating for this question
Very Good
Answered by

Practicing since : 2002
Answered : 6981 Questions
does my thumbnail look normal? very odd question but i just noticed i have a dark band that is right above my lunula. it may have always been like but not sure. Any ideas?
Posted Sun, 19 Nov 2017 in Skin Hair and Nails
Answered by Dr. Kakkar S. 5 hours later
Brief Answer:
Normal finding

Detailed Answer:
Hello. Thank you.
I am Dr. Kakkar (Dermatologist and Venereologist). I have noted your concern.

I've reviewed the picture, you seem to have a thin nail plate and that band is due to vascular nail matrix.

It's pretty normal.


Above answer was peer-reviewed by
Follow-up: What causes dark bands on the nails? 3 minutes later
thanks. is there anything i can do to thicken the nail bed?
Answered by Dr. Kakkar S. 6 minutes later
Brief Answer:
Biotin- Vitamin B suoplement

Detailed Answer:

You may take an oral biotin(vitamin B7) supplement for a few months.

Above answer was peer-reviewed by
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