Trigeminal neuralgia is common in adults and the elderly, accounting for 70%-80% of patients over 40 years of age, with more women than men. Trigeminal neuralgia is often confined to one or two branches of the trigeminal nerve, with the maxillary and mandibular branches being the most common. The attack is characterized by severe electric shock-like, pinprick-like, knife-like or tearing pain in the upper and lower jaws of the cheek and tongue, lasting for several seconds or 1-2 minutes, with sudden onset and sudden cessation and completely normal intervals. The corners of the patient’s mouth, nose, cheeks or tongue are sensitive areas and can be triggered by light touch, called trigger points or trigger points. In severe cases, reflex twitching of facial muscles may occur due to pain, and the corners of the mouth are drawn to the affected side, i.e. painful twitching. The course of the disease is cyclic, and the seizures may vary from several days, weeks or months, with remission periods as normal. The number of seizures will gradually increase as the disease progresses, the duration of seizures will be prolonged, the interval will be shortened, and even the seizures will be persistent and rarely heal on their own. Neurological examination usually has no positive signs. Patients mainly show that they are afraid to wash their faces, brush their teeth and eat due to fear of pain, and have poor facial and oral hygiene, emaciated face and depressed mood. Trigeminal neuralgia seriously affects everyone’s life, must pay more attention!