Scars usually cannot be completely repaired and removed, but can only assist in shrinking and repairing the scar, which varies from individual to individual. Scar formation is due to the formation of abnormal proliferation of collagen fibers at the site of damage after skin injury, and once formed, such skin growths produced after damage usually cannot be completely repaired and removed. However, the poor appearance of scarring can be improved through medication, compression therapy, laser therapy, and surgical excision. Early and aggressive intervention of scarring can reduce the risk of enlargement through topical scar inhibiting drugs and phototherapy; for old scarring that still affects the appearance or function, surgical excision can be considered, along with medication and phototherapy. It is recommended that patients who wish to have scar treatment should go to regular hospitals and follow the advice of specialists to choose the appropriate treatment plan.