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Includes Expert Content
New toenail growth
ashwey555 posted:
I have a new toenail growing underneath the old nail. There is a horizontal crack near the bottom of the nail & you can see the other nail underneath, about halfway up the nail. Does anyone know what is causing this/ what I should do about it?

As far as I can remember I have not dropped anything on my toe or stubbed it. Not sure what caused it. Any info will be greatly appreciated!
Mohiba K Tareen, MD responded:
Trauma as well as inflammatory conditions of the skin and nails such as psoriasis and lichen planus, as well as infections, such as fungus, can cause redundant nail growth.

If you do not recall any trauma, it would be wise to see a dermatologist to evaluate and possibly even do a little clipping of the toenail (just like trimming the nail at home) to evaluate the cause.

I hope that helps
Dr. Mohiba Tareen
Tareen Dermatology, Roseville, Minn
Castle Connoly's America's Top Cosmetic Dermatologists
Adjunct Assistant Professor Univ of MN Dept of Dermatology

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Mohiba K Tareen, MD is a board certified dermatologist who has an innovative practice in Roseville, Minnesota. Tareen Dermatology ( www.TareenDermato...More

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