Trigeminal neuralgia is the most common neurological disorder of the brain, with recurrent episodes of severe pain within the trigeminal distribution of one side of the face as the main manifestation, the incidence of which can increase with age. Trigeminal neuralgia occurs mostly in middle-aged and elderly people, with the right side more often than the left. 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, with periodic episodes of pain, and intervals between attacks are the same as normal. Trigeminal neuralgia is more common in people over 40 years of age, with more middle-aged and elderly people. The pain starts from a certain point of the face, mouth or jaw and spreads to one or more branches of the trigeminal nerve, with the second and third branches being the most common. The pain does not extend beyond the midline of the face and does not exceed the area of distribution of the trigeminal nerve. Occasionally, there is bilateral trigeminal neuralgia, accounting for 3%. We must pay more attention to it in our daily life and don’t let the pain affect our life.