Ingrown toenails can be caused by too-tight shoes, a fungal infection, or improperly cutting your nails.

An ingrown toenail, or onychocryptosis, is an uncomfortable but common condition in which the edge of your toenail grows into ...

Black toenails are usually the result of toenail injury. However, there are other things that can cause a black toenail, including fungal or bacterial infections. Most cases of black toenails aren’t ...

Dear Reader: It’s been my experience that toenails get a little unruly as we get older. They seem to fit the toes perfectly well for decades, and then they start doing funny things — the sides start ...