The common causes of numbness in the mouth, hands and feet are cerebrovascular diseases, such as cerebral hemorrhage and cerebral infarction patients can appear, mostly occurring in middle-aged and elderly people with acute onset, and most patients have a history of hyperlipidemia, diabetes and hypertension. The patient’s symptoms are persistent and may also present with weakness of the arms and legs. Cranial CT examination can make a clear diagnosis. It may also be a transient ischemic attack. Patients with this disease have symptoms lasting more than ten minutes, rarely more than one hour, and the symptoms are completely relieved within 24 hours, and the cranial CT examination is normal. The common cause is cerebral vasospasm, which may also be caused by the dislodging of emboli, or if the patient has a vascular malformation, such as severe vascular stenosis, it can also be caused.