The common disadvantages of ankle ligament repair surgery include postoperative complications such as infection and joint stiffness, which affect the normal activities of the ankle joint. 1. Infection: due to trauma, surgery, physical weakness and other factors, it can lead to local infection, redness, swelling, heat and pain at the incision, and in serious cases, it can lead to intra-articular infection, non-healing wound and other serious complications. 2. Joint stiffness: due to the long time of postoperative braking, or untimely functional training during the rehabilitation period, the soft tissues around the joints are adhered, the mobility of ankle joints deteriorates, and joint stiffness occurs, thus affecting the normal joint mobility. In addition, after ankle ligament repair surgery, if the weight bearing on the ground is too early or in an incorrect way, it is easy to re-injure the ligaments, as well as to develop joint instability. Therefore, it is recommended that patients should perform correct functional exercises under the guidance of the doctor to minimize the occurrence of complications after surgery.