When Maria Delgado noticed a dark streak under her big toenail, she assumed it was from dropping her gym bag on her foot. Six months later, that seemingly innocent mark led to a diagnosis that saved ...

It can take months to years for a toenail to grow back. The timeline can depend on the reason it’s missing, whether trauma, fungus, or another health condition. Share on Pinterest Aitor Diago/Getty ...

A curled toenail often begins as a small cosmetic change that seems easy to ignore. Then the nail thickens, the shoe rubs ...