Trigeminal neuralgia is a common disease in neurology, typically manifested by recurrent pain in a certain distribution area of the trigeminal nerve on one side of the face, which greatly affects work life in severe cases. Trigeminal neuralgia is mostly seen in middle-aged and elderly people, most of them are unilateral, and less than 5% are bilateral. Trigeminal neuralgia is divided into two types: primary and secondary. Primary trigeminal neuralgia refers to those who do not show neurological signs and have no obvious organic lesions related to the onset of the disease by various examinations; secondary trigeminal neuralgia is caused by painful symptoms of the trigeminal nerve itself or adjacent tissue lesions, and in addition to pain, there are generally neurological signs. Treatment 1.Medication Commonly used drugs include carbamazepine, phenytoin sodium, etc. Because internal drug treatment can only reduce the pain attack and is not cured for a long time, other treatments have to be used. 2.Surgical treatment Surgery is usually performed under general anesthesia, with the patient lying on his side, a skin incision of about 4 cm behind the ear, a bone window of about 2 cm in diameter is formed after the skull is drilled, the dura is cut, the cerebrospinal fluid is slowly released under the microscope, the trigeminal nerve is found with the help of the naturally formed channel, the full length of the nerve is examined, the responsible blood vessel causing the pain is determined, and the skull is properly padded with Teflon cotton, and then the skull is closed. The cranial defect is repaired with a mastoid plate. For an experienced surgeon, the whole procedure takes about one hour or so, with little bleeding, and because the operation is performed under direct vision, there is usually no facial palsy, deafness, etc. caused by damage to other nerves, and no serious consequences such as dementia or paralysis.