Hidden pain below the shoulder is considered to be caused by frozen shoulder, shoulder trauma, cervical spondylosis, and should be promptly consulted to identify the cause. 1. Frozen shoulder: unexplained inflammation of the shoulder joint, adhesion around the shoulder joint, resulting in pain around the shoulder joint and activity limitation, patients can carry out functional exercises, and when the pain is severe, follow the doctor’s instructions to take non-steroidal anti-inflammatory drugs, such as ibuprofen and so on. 2. Shoulder trauma: the shoulder is injured by external force, which leads to bone or soft tissue injury, and there is hidden pain below the shoulder, which may be accompanied by limited activities, deformity and other symptoms. According to the degree of trauma, the patient should follow the doctor’s instructions for bandaging and medication. 3. Cervical spondylosis: when suffering from cervical spondylosis, the cervical intervertebral disc protrudes to one side, stimulating unilateral nerve roots and irritating the brachial plexus nerves, and the patient will suffer from vague pain below the shoulder and numbness of the upper limbs. Patients should follow the doctor’s instructions to exercise the shoulder and neck muscles and use non-steroidal anti-inflammatory drugs such as celecoxib for pain relief. There may be many other causes of pain below the shoulder, so it is recommended that the patient should consult a doctor in time to identify the cause of the disease and target treatment. The use of medication should be in accordance with medical advice.