If the numbness on one side of the face is transient, it is generally not harmful and does not need special treatment; if it is persistent, even with numbness on one side of the limb, it is necessary to pay attention to whether it is cerebrovascular disease. If the numbness on one side of the face is sudden, persistent and unrelieved, and even accompanied by numbness and weakness on one side of the limbs, special attention should be paid to the possibility of acute cerebrovascular diseases, such as acute cerebral infarction, cerebral hemorrhage, etc., which need to go to the Emergency Department of the hospital in time for medical treatment. If the patient is transient, may be due to nervousness or other triggering factors, not accompanied by other symptoms, can be temporarily observed, do not need special treatment.