Back and shoulder pain may be related to frozen shoulder, neck and shoulder myofasciitis, cervical spondylosis, heart disease and gallbladder disease. 1. Frozen shoulder: It is a self-limited aseptic inflammation of the soft tissues around the shoulder joint for unknown reasons, which is mainly manifested by pain in the shoulder joint and limitation of joint activities. 2. Cervical and shoulder myofasciitis: also known as cervical and shoulder myofibrositis, it is aseptic inflammation of soft tissues such as fascia, muscles, tendons and ligaments, which causes symptoms such as shoulder and back pain, stiffness, limitation of activities and weakness. 3. Cervical spondylosis: Neurogenic cervical spondylosis can cause back and shoulder discomfort when it compresses the nerve roots. 4. Heart disease: angina pectoris and myocardial infarction can cause radiating pain in the left shoulder. 5. Gallbladder disease: cholecystitis can cause radiating pain in the right shoulder. If back and shoulder pain occurs, you should consult a doctor in time, do the relevant examination to clarify the cause of the disease and follow the doctor’s instructions for targeted treatment and treatment.