For arm pain, leg pain, if it is bilateral arm and leg pain, most of them are caused by cervical spondylosis, when cervical spondylosis for the spinal cord type cervical spondylosis, can compress the spinal cord and lead to numbness of the limbs, pain, and even have the symptoms of weakness, and at the same time, can be accompanied by unsteady walking, walk with a sense of stepping on cotton, then we should carry out the relevant cervical spine of the CT, MRI, X-ray examination for diagnosis, diagnosis, early treatment. After diagnosis, early treatment is needed. If conservative treatment is not effective, surgery may be needed. If the arm and leg pain is on one side, it is usually caused by head diseases, such as cerebral infarction, cerebral hemorrhage or head tumors, which can compress the nerves and lead to pain and numbness of one side of the arm, or accompanied by weakness, and then we should carry out the CT and MRI examination of the head for diagnosis and treatment.