After cerebrovascular occlusion, the area of brain tissue supplied by the cerebrovascular will suffer from ischemia and hypoxia, and the brain cells in the brain tissue will become necrotic. If the area of brain tissue is relatively large, necrosis will produce serious neurological dysfunction. If the brain tissue is supplying limb movement or sensation, the patient will have limb hemiparesis and sensory impairment. If the area is relatively large cerebral infarction, serious will cause consciousness disorder appear coma, aggravation or even life-threatening, resulting in death. So small cerebral vascular occlusion is not treated, the patient will have mild symptoms, if the large vascular occlusion is not treated in time, the consequences are more serious. Therefore, once a large vascular occlusion occurs, you should go to the hospital in time, and go to the hospital that has stent extraction and arterial thrombolysis, so that you can actively rescue the patient.