Tongue numbness may suggest the presence of intracranial tumors compressing the trigeminal nerve, and may also be a manifestation of cerebrovascular disease. The details are as follows. The sensation of the anterior two thirds of the tongue is innervated by the lingual nerve, which is a branch of the trigeminal nerve. If there is an intracranial tumor compressing the trigeminal nerve, it may lead to a numbness of the tongue. For example, cholesteatoma, acoustic neuroma, meningioma, hemangioma, etc. occurring in the cerebellar pontine triangle, as well as ganglion cell tumor, nerve sheath tumor, chordoma, etc. occurring in the semilunar ganglion of the trigeminal nerve. Cerebrovascular diseases such as cerebral infarction may also present with symptoms of tongue numbness. If in the early stages of the disease, it is possible that other symptoms are not obvious and the patient feels a numbness in the tongue. There may be other reasons for the numbness of the tongue. If the numbness of the tongue is serious or other symptoms appear, it is recommended to go to the hospital in time, and to clarify the cause of the disease for targeted treatment with the help of the doctor.