Keloid is a mass of scar tissue that occurs at the site of a cut. Keloids may be various shapes and sizes. They usually are raised above the surface of the skin and extend beyond the original skin injury. Keloids result from the overproduction of fibrous connective tissue in the dermis (inner layer of skin). They often occur after the skin has been injured by a laceration or by surgery, but they may appear spontaneously. Keloids can be surgically removed, but they frequently reappear weeks or months later.
