Shoulder pain needs to exclude factors such as trauma, frozen shoulder, prolonged compression and cold. 1. Traumatic factors: most of the soft tissue injuries around the shoulder joint caused by trauma, fracture, acromioclavicular joint dislocation, rotator cuff injury, which will mostly cause pain around the shoulder joint. 2. Frozen shoulder: Most of the cases are caused by aseptic inflammation around the shoulder joint, which leads to pain and pressure around the shoulder joint, and even causes unfavorable flexion and extension of the shoulder joint. 3. Prolonged compression: pain around the shoulder joint is often caused by prolonged compression, mostly due to prolonged sleep on one side. 4. Cold factor: Due to weather changes, pain around the shoulder joint occurs when the shoulder area gets cold. There are many reasons for shoulder pain, and it is necessary to consult a doctor in a hospital in time and complete the relevant examination to determine the cause of pain and treat it in time.