Keloid scarring is a serious sequela after the healing of the burn patient’s trauma. Whether or not a scar remains after a burn depends mainly on the depth of the burn trauma and is caused by pathological changes in the healing process of the trauma itself. Deep II and III burns often form severe keloid scars after healing, and the trauma can also be delayed due to infection, pressure, and malnutrition, which is the cause of delayed trauma healing and scar formation. In addition, the formation of scar is also related to age, and children and adolescents have a tendency to form severe scars. People of color and keloid have a tendency to develop excessive scar proliferation. Chemical burns and napalm burns often produce severe scarring; the deeper the burn (deeper than II degree trauma), the more pronounced the scar proliferation; traumatic infections often increase the chance and severity of scar formation; scar contracture and proliferation can seriously affect the patient’s quality of life. Since the mechanism of scar formation is still unknown, there is no specific medicine to prevent and treat scarring, but early prevention can be effective for scar growth and contracture. The main preventive measures are: deep trauma should be prevented and controlled from infection, and surgical implant or flap repair should be performed as soon as the systemic condition allows; once the trauma is healed, that is, insist on compression with elastic bandage or elastic sleeve as soon as possible, and insist on day and night when using, which can effectively reduce scar contracture and hyperplasia; early functional exercise can reduce the functional impairment caused by scar contracture. At present, early functional exercise is advocated in the process of burn treatment, and if the patient actively cooperates, a more ideal treatment effect can often be obtained.