Trigeminal neuralgia is the most common neurological disease of the brain, mainly manifested by recurrent paroxysmal severe pain in the distribution area of the trigeminal nerve on one side of the face, with an incidence rate of 52.2/100,000 in China, slightly more in women than in men, and the incidence rate can increase with age. Trigeminal neuralgia mostly occurs in middle-aged and elderly people, with more right-sided than left-sided. The disease is characterized by sudden onset, sudden stop, lightning-like, knife-like, burning-like, intractable and severe pain in the trigeminal nerve distribution area of the head and face. The pain can be severe when speaking, washing the face, brushing the teeth or breezing, or even when walking. The pain lasts for a few seconds or minutes, and it comes in periodic episodes with the same intervals as normal. Doctor, what is the cause of my frequent trigeminal neuralgia? Trigeminal neuralgia can be divided into primary and secondary. Secondary trigeminal neuralgia has clear causes, such as tumors, vascular lesions or skull base malformations, which compress or stimulate the trigeminal nerve and cause facial pain. The etiology of primary trigeminal neuralgia is still unclear, but in recent years, through a large number of clinical studies, most scholars believe that trigeminal neuralgia is caused by microvascular compression of the sensory roots of the trigeminal nerve into the brainstem segment. Typical manifestations of primary trigeminal neuralgia: (1) Facial pain, paroxysmal, transient and intense, pain in the form of electric burns, pinpricks, cuts and tears. (2) The intervals of pain are as normal. (3) There are often trigger points in the trigeminal nerve distribution area on the diseased side, and the pain is triggered by touching the trigger points in daily life. Many patients with trigeminal neuralgia are misdiagnosed as “tooth” pain, and the pain is still not relieved after tooth extraction in dentistry. As the patients are afraid of pain, they dare not wash their faces, brush their teeth, shave, eat, and have poor facial and oral hygiene, which leads to malnutrition, emaciation, depression, and depression over time, and the disease can last for years to decades. ”Microvascular decompression” is the most thorough and effective treatment for trigeminal neuralgia recognized internationally, which is aimed at treating the cause of trigeminal neuralgia and preserving the integrity of trigeminal nerve anatomy, with obvious pain relief effect, no destructive, little side damage and high one-time cure rate.