The common causes of arm and hand numbness are cervical spondylosis, cerebral infarction, and hand and arm compression. Different causes, different drugs, cervical spondylosis patients can eat methylcobalamin for nutritional nerve; cerebral infarction patients can eat butylphthalide capsules to improve blood circulation; hand and arm compression usually do not need to take drugs. 1. patients with cervical spondylosis can cause numbness and discomfort in the arms and hands, but also headache, dizziness, nausea and other manifestations, usually due to prolonged postural movements caused by cervical spine degenerative lesions leading to cervical spondylosis, you can take methylcobalamin and vitamin B and other medications for the treatment of nutritional nerves, and at the same time for the rehabilitation of functional training treatment. 2. Cerebral infarction patients due to cerebrovascular ischemia and hypoxia caused by limb motor sensory deficits, can be accompanied by speech dysfunction, can be prescribed to take butylphthalide capsules to improve cerebral vascular circulation, aspirin for antiplatelet therapy; the need for surgical treatment, such as thrombolytic therapy, interventional therapy and so on. 3. Hand and arm compression, causing temporary obstruction of blood circulation, resulting in numbness of the arm and hand, relieve the compression factors of the arm and hand numbness disappears, which is a normal physiological situation, usually do not need to take medication. Numbness of the arms and hands can also be caused by other reasons, it is recommended that patients go to the hospital in a timely manner to check and identify the causes of active treatment.