Trigeminal nerve numbness, generally expressed as numbness in the distribution area of the trigeminal nerve, including numbness in the cheek, usually needs to be differentiated according to the characteristics of its onset. Its causative factors include the following: 1, vascular diseases: such as TIA attack, cerebral infarction, such as older age, previous hypertensive disease, diabetes, hyperlipidemia, such elderly patients with symptoms of numbness of the trigeminal nerve, usually consider vascular diseases; 2, trigeminal neuritis, its onset is characterized by numbness in the trigeminal nerve distribution area, before the numbness may appear fever symptoms, through nutritional Nerve treatment and antiviral treatment can relieve the symptoms; 3, occupying lesions, intracranial or skull base occupying lesions, including tumors and cysts, can cause numbness in the trigeminal nerve distribution area.