A scar is the body’s natural way of healing and replacing lost or damaged skin. A scar is usually composed of fibrous tissue. Scars may be formed for many different reasons, including as a result of infections, surgery, injuries, or inflammation of tissue. Scars may appear anywhere on the body, and the composition of a scar may vary–appearing flat, lumpy, sunken, or colored. The scar may be painful or itchy. The final look of a scar depends on many factors, including the skin type and location on the body, the direction of the wound, the type of injury, age of the person with the scar, and his or her nutritional status. Scar revision is a procedure done on a scar to alter the appearance of it. The revision may improve the cosmetic appearance of the scar, restore function to a part of the body that may have been restricted by the scar, or improve an itchy scar. It is important to remember that scars cannot be completely removed.