Sudden inability to walk can be attributed to cerebrovascular disease, which can be seen in cerebral hemorrhage, cerebral infarction, and transient ischemic attack. Cerebral hemorrhage patients usually have a history of hypertension or aneurysm vascular malformation, due to rupture of blood vessels lead to blood overflow outside the blood vessels on the brain tissue to produce pressure, there will be numbness and weakness of the limbs, resulting in patients can not walk, head CT examination will be found in the high-density shadows, the treatment of the amount of bleeding to give a conservative or surgical treatment. Cerebral infarction or transient ischemic attack caused by the legs suddenly can not walk, belongs to the ischemic cerebrovascular disease, give the patient head CT or magnetic examination, give anti-platelet aggregation as well as activate blood circulation, remove blood stasis, improve the circulation of symptomatic treatment.