The onset of trigeminal neuralgia has no warning, and the pain attacks have a certain pattern, that is, each pain attack can last from a few seconds to about one or two minutes, and then suddenly stop. Initially, the number of attacks is relatively small and the interval is relatively long, ranging from several minutes to several hours, but with the development of the disease, patients may have more and more frequent attacks in the later stages of the disease, and the interval is gradually shortened and the pain becomes more and more intense. Trigeminal neuralgia is mostly caused by abnormal blood vessels compressing the trigeminal nerve. Traditional treatment methods, such as: medication and acupuncture treatment, can only play a role in relieving pain, and have little effect on the treatment of trigeminal neuralgia. If patients take medication for a long time, it will have certain side effects and also bring damage to the patient’s liver function. If patients are treated with acupuncture, long-term acupuncture will not only fail to recover from the disease, but also lead to irreversible consequences or facial paralysis due to long-term nerve stimulation. Therefore, “microvascular decompression” is the most effective method to treat trigeminal neuralgia according to the cause. This is a minimally invasive surgery with low risk, high safety, few complications, and low recurrence rate, which is the most effective treatment for trigeminal neuralgia.