Flesh that is hard and still thick after the stitches are removed from the finger may be due to the formation of a keloid. Fingers will gradually begin to repair after a traumatic injury, and in the process, scar tissue will slowly form. After the wound heals, if the scar tissue overgrows, causing the scar to protrude onto the surface of the skin and extend irregularly around it, it is called a keloid. The mechanism by which keloids occur is not well understood and may be related to body type. Keloid tissue can fill in gaps and maintain organ integrity; however, overgrown keloid scars can lead to contractures of nearby joints and restricted movement, among other things. If this occurs, keloidectomy may be considered to remove the overgrown scar tissue and restore joint mobility.