Do the effects of hypothyroidism include black nails?

1 answer | Last updated: Nov 05, 2016
Crazycuan07 asked...

Do the effects of hypothyroidism include black nails?


Expert Answers

Jennifer Serafin, N.P. is a registered nurse and geriatric nurse practitioner at the Jewish Homes for the Aged in San Francisco.

Black nails are not normally caused by hypothyroidism.  However, medications (like Cytoxan) can cause this to happen.  Also, certain other medical conditions, like fungal infections of the nail, can do this.  Injuries to the nail itself can make your nails turn black.  If you are really concerned, you can see a dermatologist to find out what is going on with your nails.