Scarring of the hand often has a more pronounced impact on hand function and patient quality of life than scarring of other parts of the body in terms of functional impairment. Therefore, the treatment of dysfunction caused by scar adhesions and scar contractures is one of the main elements to be addressed in the treatment of hand scarring. According to the impact of scarring on hand function, hand scarring can be categorized into two main groups: scarring that does not cause dysfunction and scarring that causes dysfunction. The former is usually a cosmetic change, and patients often consult the doctor because the scar affects the aesthetics; the latter is due to the hyperplasia or keloid formation of the scar that affects the movement of the hand, or due to the contracture of the scar in the joint area caused by the joint movement limitation, such as claw shaped hand after burns. Treatment of hand scarring is usually complex and often involves a combination of treatments including physical therapy, medication and surgical repair. In the early stages of the injury, appropriate physiotherapy such as waxing, phototherapy, traction and sensible medication should be used to promote softening of the scar and partially improve the range of motion of the joint in order to provide a good foundation for future scar release surgery. Once the scar has matured, orthopedic treatment should be performed to restore function. This includes complete removal of scar tissue, complete release of contracture, and repair and reconstruction of bone, nerves, tendons and other deep tissues. The main treatment methods include: Z-word plastic surgery; free skin grafting, localized such as forearm flap with tip transfer repair, abdominal (expansion) flap with tip transfer repair, free skin flap transplantation repair, joint capsule release or joint fusion, nerve function reconstruction, tendon lengthening and tendon grafting and so on. It is important to note that the treatment of severe hand scarring usually requires 2-3 or more surgeries to achieve good results. And good postoperative functional exercise is also a key factor in determining the outcome of the surgery.