Trigeminal neuralgia is one of the most common cranial nerve disorders in clinical practice, which is characterized by severe paroxysmal pain in the distribution area of the trigeminal nerve on one side of the face, mostly occurring in middle-aged and elderly people. The pain is electric shock-like, needle-like, burning-like, and very stubborn and unbearable, so it is also known as the world’s first pain. Trigeminal neuralgia often has more obvious trigger points (also called trigger points), mostly located in the upper lip, nose, gums, corners of the mouth, tongue, eyebrows, etc. Light touch or stimulation of the trigger points can stimulate the onset of pain. Therefore, many trigeminal neuralgia patients washing their faces, brushing their teeth, eating, shaving or even breezing their faces may trigger severe pain, which seriously affects normal life and daily activities, and causes great psychological torture to patients. Some patients are emotionally unstable or even depressed because of this, and some choose to commit suicide because they cannot bear the painful torture of trigeminal neuralgia. Therefore, this is a very terrible disease, patients should pay attention to it and receive correct and regular treatment as soon as possible. How is trigeminal neuralgia surgery treated? According to relevant research, trigeminal neuralgia is mostly caused by the compression of the trigeminal nerve root by the surrounding blood vessels, resulting in nerve demyelination and abnormal nerve discharge, which causes severe pain in the corresponding area of the face. Based on this principle, microvascular decompression is currently a very effective treatment for trigeminal neuralgia. The trigeminal nerve root is located under a microscope, and the anatomical relationship between the trigeminal nerve root and the surrounding blood vessels and tissues is carefully investigated. The responsible blood vessel that is compressing the nerve is found and pushed away, and a teflon cotton pad of appropriate size is inserted to isolate it, so that the pain no longer occurs.