Keloid

Keloid, also known as keloid disorder and keloidal scar, is the formation of a type of scar composed mainly of collagen, resulting from an overgrowth of granulation tissue at the site of a healed skin injury. Keloids are firm, rubbery lesions or shiny, fibrous nodules that can vary from pink to the color of the person's skin or red to dark brown. A keloid scar is benign and not contagious, but is sometimes accompanied by severe itchiness, pain, and changes in texture, and in severe cases can affect the movement of the skin. In the United States, keloid scars are seen fifteen times more frequently in people of sub-Saharan African descent than in people of European descent, and there is a higher tendency to develop a keloid among those with a family history of keloids and people between the ages of ten and thirty years.