Consider physiological rattling of shoulder bones, frozen shoulder, biceps long head tendonitis, and so on. 1. Physiological rattling: if the bones of the shoulder are only rattling without symptoms of local pain or activity disorder, it is considered to be physiological rattling, which belongs to physiological phenomenon and is related to the tension of joint ligaments and the friction of cartilage, and does not need special treatment. 2. Frozen shoulder: Inflammatory lesions of shoulder joint will appear clicking, but with shoulder joint pain, activity limitation as the main symptom, CT examination can be diagnosed, need targeted treatment. 3. Biceps long head tendonitis: due to joint adhesion affecting the normal functional activities of the joint, there may be shoulder clicking, accompanied by local stiffness, swelling and pain discomfort. Shoulder bone clicking may also exist for other reasons, if the shoulder swelling and pain discomfort, impaired mobility and other symptoms, it is recommended to consult a doctor in a timely manner, improve the examination to clarify the cause of the disease, and then take targeted therapeutic measures.