Trigeminal neuralgia is generally easy to diagnose. When secondary trigeminal neuralgia is suspected, targeted examination should be conducted. The main diagnostic points of trigeminal neuralgia are as follows: 1. Most of the patients have no pain at all when the attack occurs, and only a very small number of patients still have mild pain. Most of the patients have “trigger points”, i.e., trigger points, which can cause painful attacks, but the attack has just passed, and then stimulating the “trigger points” will not cause attacks. 4, more than 95% of patients with trigeminal nerve is one-sided, pain attacks are not combined with nausea, vomiting. 5. Early treatment with anti-neuralgia drugs such as “carbamazepine” is effective, but analgesic drugs such as “painkillers” are not effective. 6.The course of the disease is long, with a gradual progressive trend, the effect of drugs is good at the beginning, but the effect becomes worse and worse later, even if the dose of drugs is increased, it is not effective. (a) Trigeminal neuritis is a secondary trigeminal neuralgia, which occurs above the orbit and is a persistent pain, and some patients may develop herpes zoster virus several days after the attack. This disease can improve on its own and is effective with the application of analgesics, vitamins or local anesthetics and hormones. （The toothache is paroxysmal and is not obvious, but is very much related to hot or cold food. （The pain is paroxysmal, most of the attacks occur when swallowing, followed by nodding, talking and laughing, mostly in the root of the tongue and throat or behind the ear, and the pain is usually in the direction below the line between the root of the ear and the corner of the mouth. (iv) Vascular migraine Vascular migraine is a periodic, unilateral headache of varying severity, which is mostly felt by itself as deep brain distension, and trigeminal neuralgia is mostly felt as superficial pain in the face.