In most cases, shoulder pain is caused by trauma, cervical spondylosis, frozen shoulder and so on. 1. Trauma: When the area above the shoulder is collided or squeezed, resulting in local soft tissues, blood vessels or bone injury or even fracture and ligament damage, causing edema, pain, limited movement and so on, which manifests itself as the symptom of pain above the shoulder. 2. Cervical spondylosis: If the patient suffers from cervical spondylosis, the spine may have degenerative changes and abnormal growth, when the spine oppresses and stimulates the local nerve tissues and blood vessels, in which case it will involve the shoulder and the surrounding tissues, and the symptom of pain in the top of the shoulder may appear. 3. Frozen shoulder: when suffering from frozen shoulder, the patient’s shoulder joint may have degenerative changes, causing local aseptic inflammation and joint adhesion, inflammation stimulation of local tissues or abnormal adhesion, which will lead to shoulder pain, and accompanied by the symptoms of activity limitation. It is recommended to go to the hospital in time for examination and diagnosis, to clarify the cause of the disease, to exclude the shoulder bone tumor, and then to carry out targeted treatment under the guidance of a professional physician, to avoid the impact on the health of the body.