Facial numbness may be the precursor of migraine attack, or it may be the early manifestation of cerebral infarction, cerebral hemorrhage, Guillain-Barré syndrome and other diseases, and it may also be related to excessive mental stress. 1. Migraine: Before the attack of migraine with aura, a few patients will have numbness of the tongue and face, aura of speech difficulty, and slight weakness of the limbs. 2. Cerebral infarction and cerebral hemorrhage: for patients with cerebral arteriosclerosis, heart disease and hyperlipidemia, symptoms such as numbness of the face, dizziness, numbness of the limbs, nausea and vomiting will appear in the early stage of the attack. 3. Guillain-Barré syndrome: the symptoms of facial numbness will also appear in the early stage, accompanied by limb numbness, weakness and other symptoms. 4. Excessive mental stress: If the patient is under too much mental stress, lack of sleep for a long time or live in a too cold environment and other factors. Face numbness may also occur. Once persistent facial numbness occurs, please consult a doctor in time to avoid delaying the condition.