The patient’s sudden face numbness may be a neurological disorder, or it may be caused by cerebrovascular disease or facial neuritis, depending on the patient’s underlying disease, the form of onset and the triggering factors: 1. If the patient’s face numbness occurs under exertion, poor rest and mental tension, consider it a manifestation of neurological weakness. 2. If the patient has risk factors for cerebrovascular disease and suddenly The appearance of numbness on one side of the face, with symptoms of clumsy language or drooling and numbness of the limbs, is considered to be caused by acute cerebrovascular disease. The patient’s face is suddenly numb, if it appears after the cold, wind, numbness on one side of the face, not accompanied by numbness of the limbs or other symptoms of neurological deficits, consider the early manifestations of facial neuritis.