Stale ankle sprains are usually difficult to cure completely and require different treatments depending on the cause. The causes may be related to muscle tissue injury, ligament injury, joint capsule injury and other factors, according to the cause of the disease can choose general treatment, drug treatment, conservative treatment or surgical treatment to relieve the symptoms. 1. Muscle tissue injury: If it is only muscle soft tissue injury, it should be considered that adhesion has occurred, which is easy to cause prolonged treatment. It is suggested that appropriate activities can effectively improve the muscle adhesion. If the degree of adhesion is serious, we can consider doing muscle release surgery, after surgery can usually be healed. 2. Ligament injury: If the ligaments are injured, and the condition causes recurrent pain, physical therapy can be considered, including infrared physiotherapy, microwave physiotherapy, etc. If the injury is serious, arthroscopic minimally invasive treatment can be chosen. If the injury is serious, arthroscopic minimally invasive surgery can be chosen. 3. Joint capsule injury: If the joint is injured and causes swelling and pain, oral ibuprofen, celecoxib and other drugs can be considered to relieve pain, and local physical therapy can also be carried out. For more serious joint capsule injury, we can consider arthroscopic surgery to repair the damaged part, the specific effect varies from person to person. Regarding the old ankle injury, X-ray examination should be done as soon as possible to analyze the severity of the disease and the damage site, and then according to the examination results under the guidance of the doctor targeted treatment.