The clicking sound after recovery from ankle fracture may be caused by degenerative osteoarthritis, cartilage damage, tendon and ligament spasm and other reasons. 1. Degenerative arthritis: if the patient is degenerative osteoarthritis, it is especially easy to have internal rattling with pain when the ankle joint is flexed and extended. This may be due to a fracture that has not yet healed or a joint free body that has fallen into the joint cavity. 2. Cartilage damage: If the patient has cartilage damage or ankle fracture with serious cartilage damage, and the cartilage damage has not recovered and healed during the recovery period of the fracture, it will also trigger the symptoms of ankle joint ringing. 3. Tendon and ligament spasm: because the ankle fracture fixed for a long time, tendons and ligaments are not stressed exercise, in a short period of time to the cold and sports conditions are not adapted to the spasm, and there is friction between the ankle joints and the clicking sound. If the patient appears after the ankle joint ringing situation, it is recommended that the patient must go to the hospital for timely consultation.