Trigeminal neuralgia is a common neurological disorder of the brain, most often occurring in middle and old age. It usually has primary onset without obvious triggers. Pain is the main symptom, and the attacks are intense such as electric shock-like, pinprick-like, and knife-like, intermittent, and initially each attack lasts for several seconds or minutes and then relieves itself. The trigeminal nerve is distributed on both sides of the face and has three branches, namely the maxillary branch, the ophthalmic branch and the mandibular branch. Pain in the ophthalmic branch is easily misdiagnosed as migraine; pain in the mandibular branch is easily misdiagnosed as toothache; if pain occurs, it is important to find out which kind of pain it is, that is, the characteristics of sensory pain, and if it is consistent with the characteristics of trigeminal neuralgia, it is recommended to go to the neurology department of the hospital for consultation. If trigeminal neuralgia is misdiagnosed as toothache, the pain will still be there even if the tooth is extracted, so you cannot blindly extract the tooth. There may be patients who experience pain and go to buy painkillers. Taking general painkillers for trigeminal neuralgia is not effective. Trigeminal neuralgia can take carbamazepine or oxcarbazepine, which has effect, but the drugs should not be taken indiscriminately, otherwise they cause strong side effects, or actively seek medical attention. Trigeminal neuralgia attacks are often without warning. The symptoms of trigeminal neuralgia come and go as soon as they are said to, and are sudden, lightning-like, short and intense pain, each attack lasts from a few seconds to one or two minutes and stops abruptly. The site of trigeminal neuralgia attack is one or several branches in the distribution area of trigeminal nerve, or it may start from one branch and spread to other branches. The pain of trigeminal neuralgia is usually distributed along the nerve. It hurts to eat, brush your teeth, wash your face, and talk. The symptoms of trigeminal neuralgia are very intense, and the pain is very painful when the pain attacks. Patients suffer a lot of pain and it is rare for them to heal themselves. Oral medications only help to relieve the pain of trigeminal neuralgia, but surgery is needed to completely treat trigeminal neuralgia without recurrence. The use of microvascular decompression to treat trigeminal neuralgia is a minimally invasive procedure that involves the application of microsurgical techniques to remove the responsible blood vessels that are compressing the nerve and place decompression materials between the nerve and the blood vessels to achieve the disappearance of facial pain after surgery, because about 80% of trigeminal neuralgia patients are caused by the compression of blood vessels at the root of the facial nerve. Therefore, to completely treat trigeminal neuralgia, treatment for the cause is the only way to cure it.