Shoulder bone clicking may be caused by normal physiological reasons, or it may be caused by frozen shoulder, muscle strain, shoulder lock joint dislocation and other pathological reasons, you should consult a doctor in time to find out the cause of the disease. 1. Physiological reasons: most of them are caused by the friction between the soft tissues around the shoulder joint and the shoulder joint during activities, with no uncomfortable symptoms and no need for special treatment. 2. Frozen shoulder: it is mainly a chronic specific inflammation of the shoulder joint capsule and its surrounding ligaments, tendons and bursa. It is caused by long-term over-activity, poor posture and improper treatment after strain injury. It can limit the active and passive activities in all directions of the shoulder joint, leading to shoulder bone noise, which needs to be treated after X-ray or MRI examination of the shoulder joint to clarify the cause of the disease. 3. Muscle strain: the shoulder joint is subjected to external force, resulting in injury to the muscles, soft tissues and tendons in the shoulder area. Physiotherapy such as cold compresses can be used immediately after the strain, and medication such as ibuprofen, meloxicam and other anti-inflammatory and analgesic drugs can be given according to the doctor’s prescription. If the injury is serious, surgery may be needed. 4. acromioclavicular joint dislocation: shoulder bone rattling is also seen in acromioclavicular joint dislocation, accompanied by pain, joint activity is limited and other symptoms, should be timely hospitalization for reset. Shoulder bone clicking may be caused by other reasons such as calcium deficiency, cervical spondylosis, etc. It is recommended that the patient go to a regular hospital in time, by the doctor to clarify the cause of the disease, to give targeted treatment.