Trigeminal neuralgia is a transient, recurrent paroxysmal severe pain within the distribution of the facial trigeminal nerve. Symptoms: It manifests as an electrical burning, pins-and-needles, knife-like or tearing pain in the affected side of the face. The pain does not usually go beyond the midline. Each attack may last from a few seconds to 1-2 minutes and then stop abruptly, with intervals as normal. The condition may gradually worsen and the number of pain attacks may become more frequent, even once a few minutes, resulting in more than one day. The pain can be triggered by touching the skin of the patient’s face. In severe cases, patients dare not wash their faces, brush their teeth or even chew, and rely on a small amount of liquid or semi-liquid food to maintain nutrition throughout the day, which seriously affects the quality of life. Etiology: A variety of causes can lead to trigeminal neuralgia, such as: vascular compression, multiple sclerosis, tumors, etc., among which vascular compression is the most common factor. Treatment: trigeminal nerve root manifestation microvascular decompression for trigeminal neuralgia, the pain disappears after surgery in 90% of cases. Complications are less than 2%. Procedure: Patients need to be hospitalized to receive surgical treatment, and the average hospital stay is 10 days. Under general anesthesia, an incision of about 5 cm is made behind the affected ear, and a skull window of about 2 cm is opened, and the blood vessels compressing the trigeminal nerve are cushioned from the trigeminal nerve with a special material under the operating microscope. The entire operation was completed within 1 hour with almost no damage to the patient’s nerve and brain tissue.