When you lift your arm, the bone will thump, which may be caused by physiological popping, frozen shoulder, rotator cuff injury and other factors. 1. Physiological rattling: under normal circumstances, when lifting the arm, the bones and joints will be friction, there will be rattling symptoms, mostly seen in the long time rest after the sudden movement of the crowd, this is a normal phenomenon, usually not accompanied by other discomforts. 2. Frozen shoulder: Frozen shoulder is an aseptic inflammation of the soft tissues around the shoulder joint, which is also called frozen shoulder, and the patient will have pain in the shoulder joint, and there will also be stiffness of the joints, and the friction between the joints when lifting the arm will also cause the ringing sound. 3. Rotator cuff injury: rotator cuff injury is an injury to the tendons of the rotator cuff, which will cause pain and joint limitation when lifting the arm, and the joints will be popping, and there will be weakness of the shoulder joint and other symptoms. For normal physiological phenomena do not need special treatment, if the arm thumping is a pathological factor, it is recommended that the patient consult a doctor in a timely manner to clarify the cause of the disease for targeted treatment.