Left arm pain generally requires an exhaustive physical examination and inspection before the next action can be taken to clarify whether the arm pain is caused by the cervical spine or the shoulder itself is painful. The treatment of left arm pain is as follows: 1, cervical spine caused pain: need to do traction, physical therapy, massage. If it does protrude more, can do cervical spine surgery; 2, shoulder problems: cervical spine no problem, only shoulder problems, first do physical therapy, massage, followed by taking anti-inflammatory painkillers. If the effect is poor, you can play local closure. Patients should also be encouraged to exercise more joints, more activities, such as climbing the wall, but need to move forward quickly under the guidance of the rehabilitation division.