What Causes Corns?
An area of skin that is exposed to repetitive force may cause a callus. A callus is a thickened area of skin that’s formed by the body to protect the skin. When there is a mass of dead cells in the center of a callus, it becomes a corn. Corns most often occur on the toes and the balls of the fee. A callus can occur on any part of the skin exposed to repeated force.