There is a pain that occurs in the face and is often unbearable. Many people mistake it for a toothache, only to find out that they have “trigeminal neuralgia”, which is known as the number one pain in the world, after an examination in the hospital. Trigeminal neuralgia often starts as a toothache, then facial pain. The nature of the pain is like a knife, needle, burning, electric shock, which makes the patient suffer from pain and physical and mental destruction. Trigeminal neuralgia is mainly manifested as sudden onset and stoppage, lightning-like, knife-like, burning-like, stubborn, unbearable and severe pain in the area of the trigeminal nerve of the head and face respectively. The pain is usually periodic and lasts for several seconds or minutes when it occurs, but it is the same as normal when it does not occur. If the disease is not treated in time, it can seriously affect the patient’s normal life. For example, patients have difficulty washing their faces, brushing their teeth, eating and drinking, sometimes they cannot sleep because of the pain, and sometimes they even dare not talk or walk. Some hospitals take oral medication, acupuncture, closed treatment, gamma knife treatment and other ways trigeminal neuralgia, but there are some drawbacks, such as carbamazepine as the first-line drugs for the treatment of trigeminal neuralgia, although it can relieve pain to a certain extent, but there is drowsiness, dizziness and weakness, walking instability and other adverse reactions; closed treatment can only play a short-term relief effect, and can not fundamentally treat trigeminal neuralgia; Gamma knife treatment is slow to take effect, which can easily lead to patients miss the initial treatment time, the pain worsens. For trigeminal neuralgia, how to scientifically carry out treatment? It is understood that microvascular decompression has helped many trigeminal neuralgia patients to recover their health. The technique of microvascular decompression is mature and easy to operate. During the operation, the blood vessel compressing the trigeminal nerve root is found, and then the Tefflon piece is inserted to separate the blood vessel from the trigeminal nerve root, thus effectively solving the problem of facial pain.