Keloid, also known as keloid disorder and keloidal scar, is the formation of a type of scar which, depending on its maturity, is composed mainly of either type III (early) or type I (late) collagen. It is a result of an overgrowth of granulation tissue (collagen type 3) at the site of a healed skin injury which is then slowly replaced by collagen type 1. Keloids are firm, rubbery lesions or shiny, fibrous nodules, and can vary from pink to the color of the patient’s flesh or red to dark brown in color. A keloid scar is benign and not contagious, but sometimes accompanied by severe itchiness, pain, and changes in texture. In severe cases, it can affect movement of skin. Keloid scars are seen 15 times more frequently in people of African descent than in people of European descent.
What are the symptoms of this condition?
- As disfiguring marks left on the skin by healing of injured tissues, keloids can be seen as firm, raised, soft and at times shiny growth on the skin – they are not painful but there can be itching, burning sensation or inflammation at times.
- Pink or red colourscars and usually darker or lighter than the colour of surrounding skin.
- At times they can extend beyond the limits of original woundwhich can be disfiguring.
Changes in colour, shape and size of scars with time
Keloids on back