Numbness of the tongue and hand is generally considered to be a sign of cerebrovascular disease, for cerebrovascular disease, it is divided into ischemic disease and hemorrhagic disease, clinically, ischemic disease is more common. Ischemic diseases, commonly known as cerebral infarction, can cause symptoms of neurological deficits in patients with cerebral infarction. For tongue numbness and hand numbness, ischemia of the cerebral hemispheres can be generally considered, as well as ischemia of the posterior circulation. If the ischemia is in the cerebral hemisphere, some patients may also have symptoms of speech dumbness. If the ischemia is in the posterior circulation, the patient may also have dizziness, blurred vision, or double vision, etc. The diagnosis can be confirmed by CT or MRI of the head. In case of hemorrhagic cerebrovascular disease, cerebral hemorrhage is the most common cause. Patients with cerebral hemorrhage may have increased blood pressure, headache, nausea in severe cases, and most patients may also have a strong collar, which is caused by increased intracranial pressure.