Right arm weakness and numbness: First, young patients are mostly considered to be caused by muscle strain due to prolonged maintenance of a posture, resulting in transient ischemia, hypoxia, numbness, weakness symptoms, the symptoms can gradually disappear by moving the limb or local massage. Secondly, patients with long-term ambulatory work or previous cervical spondylosis may have the above symptoms, and cervical spine X-rays are feasible to find the cause. For elderly patients, we should pay attention to the possibility of acute cerebral hemorrhage, such as cerebral infarction, cerebral hemorrhage, etc. These diseases have an acute onset, and most of them are suffering from hypertension, diabetes and other risk factors that cause atherosclerosis.