It then moves toward the base of the nail. Less often, the infection begins at the base of the nail. This area then thickens ...

They occur when the edge of a toenail starts growing into the surrounding skin, causing pain, swelling, and discoloration, ...

A pincer toenail causes the skin to become red, tender, and swollen. It also raises the risk of infection. Common causes of pincer toenails include chronic (long-term) health conditions ...