The ringing of the foot neck when it is turned may be related to the following reasons: 1. It may be caused by an old injury of the tendon. This condition is very common in clinical practice, for example, if a patient has a broken foot when going down the stairs, if it is not properly treated at that time, the damage to the joint capsule and tendon is not well repaired, and this symptom may occur afterwards. This is due to scarring, adhesions or tendon rupture, which may cause the ankle joint to rumble and pop when you move it. 2. If the ankle joint has had a serious injury in the past, such as a fracture or dislocation of the joint, it is very likely that there will be a traumatic arthritis here after recovery. Once this condition occurs, it often leads to unfavorable joint movement and noise when the ankle joint is turned. 3. There may be free bodies inside the ankle joint. This condition is often due to a previous injury to the ankle joint, resulting in the presence of bone chips or other material that over time can attach to abnormal deposits of calcium salts, forming a pearl-like substance. When the patient rotates the ankle joint, this sound can occur if the ankle joint collides with other parts of the ankle joint.