When an ankle ligament is torn, it depends on the severity of the tear, which is divided into a mild partial tear and a complete tear, and the recovery time is different, as follows: 1. Mild partial tear: Generally, a cast is applied and the recovery time is about three months. During the braking period, the ankle should be elevated to help the swelling subside. 2. Complete tears: If the ankle joint is completely torn and accompanied by joint instability, surgical intervention should be performed, and conservative treatment cannot be rehabilitated. In the surgery, reconstruction surgery or repair surgery of the torn ligament is performed. The repair is followed by immobilization with an ankle brace for about 1 to 1.5 months. The healing time of the ligament is about three months after surgery, so the healing of a complete ankle tear is also about three months.