Scar formation is a natural part of the healing process that occurs after the skin has been injured. When the skin is cut or damaged, the body produces a protein called collagen to repair the wound. This collagen forms new tissue, which can appear different in color and texture compared to the surrounding skin, resulting in a scar. Over time, scars may fade and become less noticeable, but they often remain as a reminder of the injury. Factors such as the size of the wound, the location on the body, and individual healing processes can influence how a scar develops and its final appearance.