Thick, rough skin under your toenails is uncomfortable and sometimes painful. Thickening toe skin may be a sign of fungus on the toes, which can be socially embarrassing and may cause toenail loss.

I, for one, had no idea that most of the gunk under your nails is actually not dirt ... underneath fingernails is most ...

Nails start in the nail root, hidden under the cuticle. When cells at the root of the nail grow, the new nail cells push out the old nail cells. These old cells flatten and harden, thanks to keratin, ...