Trigeminal neuralgia is divided into secondary trigeminal neuropathy and primary trigeminal neuralgia, in which we usually say trigeminal neuralgia refers to primary trigeminal neuralgia. The most important thing about trigeminal neuralgia is first of all the diagnosis, because misdiagnosis of other diseases as trigeminal neuralgia will not be worth the loss. Trigeminal neuralgia” is sometimes referred to as “facial pain” and can be easily confused with dental pain. Trigeminal neuralgia is a kind of recurrent severe neuralgia that occurs in the distribution area of the trigeminal nerve in the face, and it is one of the common diseases in neurosurgery and neurology. Most of the trigeminal neuralgia starts at the age of 40, mostly occurs in middle-aged and elderly people, especially in women, and its onset is more on the right side than on the left side. The disease is characterized by sudden onset, sudden stop, lightning-like, knife-like, burning-like, intractable and severe pain in the distribution area of the trigeminal nerve in the head and face, and is usually treated with surgery or advanced therapy and effective care of the nerve to achieve certain results. And treatment methods vary according to the different conditions of the change, trigeminal neuralgia treatment methods are mainly the following: 1, such as phenytoin sodium, Delidor, carbamazepine and other treatment can play a role in relieving or temporary pain relief, long-term use of side effects are very large, so patients are not recommended to take often. 2, anhydrous alcohol injection treatment: there are greater side effects, the whole destroyed the structure of the trigeminal nerve, more will leave facial numbness, biting muscle weakness, numbness in the front 1/3 of the tongue, etc. 3, infrared radiofrequency treatment: through the needle electrode directly inserted into the trigeminal nerve semilunar node, emitting infrared damage to the trigeminal nerve, will also leave facial numbness, chewing muscle weakness. 4, Gamma knife treatment: called minimally invasive treatment, hospitalization time is generally 3 days, generally does not leave sequelae. 5.Microvascular decompression for trigeminal neuralgia, which is effective but invasive.