The most dangerous thing about the onset of trigeminal neuralgia is that there is no warning at the beginning of the disease, and the time interval between the first attacks of the disease is long, so many patients will not be able to judge the occurrence of the disease in time at the early stage, which makes the disease continue to develop in the patient’s body until the seriousness of the disease appears. Firstly, there is no aura Trigeminal neuralgia has no aura at the beginning of the symptoms, moreover, the number of attacks at the beginning is small, the interval is long, ranging from several minutes to several hours, moreover, with the development of the disease, the attacks are gradually frequent, the interval is gradually shortened, the pain is also gradually aggravated and intense, the pain attacks at night are reduced, and there is no discomfort during the interval. Secondly, conjunctival congestion The symptoms of trigeminal neuralgia also include the clearing of conjunctival congestion, which is also accompanied by lacrimation, flowing delay, facial flushing, etc. Generally, the pain may be induced by eating, gargling, brushing teeth or stroking the corners of the mouth or cheeks and other specific areas during the interval of the onset of the patient, which are called excitation points or boarder points and are also common manifestations. Third, suddenness and intensity Suddenness and intensity are the typical symptom characteristics of this disease. Sudden and intense pain in the distribution area of the trigeminal nerve in this disease is generally seen in the maxillary (branch II) and mandibular nerve (branch III) as the site of onset of symptoms. The pain is like electric shock discharge, knife shaving and drill-like pain, which lasts for n seconds to 1~2 minutes, and repeated episodes of severe pain are unbearable. 1, trigeminal neuralgia patient’s pain site: in general, trigeminal neuralgia patient’s pain site will not be beyond the distribution of trigeminal neuralgia, beyond will be confined to one side, most patients involved in a, mainly the 2nd, 3rd branch combined pain is the most obvious, about 95% of the trigeminal neuralgia. 2, the nature of the pain of trigeminal neuralgia patients: the pain of trigeminal neuralgia patients is mainly episodic cut-like, tear-like, electric shock-like severe pain, manifesting as sudden onset and sudden cessation. The pain lasts for a few seconds or minutes at a time. The interval between attacks is gradually shortened and the pain is gradually increased. Patients with frequent attacks will affect the rest and eating of trigeminal neuralgia patients. The main features of trigeminal neuralgia also include “trigger points” and triggering factors: pain attacks are often triggered by actions such as brushing teeth, washing face, talking, chewing, etc. Even wind blowing or loud sounds can cause attacks. In some patients, pain attacks can be triggered by touching the areas around the nose, mouth, gums, and the inner end of the brow arch, which are sensitive areas called “trigger points” or “trigger points”. Anesthesia of the “trigger points” often provides temporary relief of pain attacks. Therefore, trigeminal neuralgia patients are often afraid to wash their faces, speak loudly, or even eat in order to avoid attacks. 4, trigeminal neuralgia patient signs: the attack can be accompanied by the same side muscle twitching, facial flushing, tearing and salivation, so also known as painful twitching. The patient often rubs the ipsilateral side of the face during painful attacks, and over time the facial skin becomes rough, thickened, and the eyebrows fall off, and then because they are afraid to eat, wash their faces, and do not trim their faces, the patient often appears thin, gaunt, unkempt, and depressed. The objective examination is mostly free of trigeminal nerve deficits and other limited neurological signs, but sometimes facial pain and tactile sensation may be diminished due to roughness and thickening of facial skin or closed treatment. Although the onset of trigeminal neuralgia is not suitable to be detected in the early stage, but because the trigeminal nerve is distributed in the frontal face, there are more nerves and blood vessels in this area, once the onset of the disease has a great impact on people, especially the occurrence of trigeminal neuralgia disease, it is like a knife cut, electric burning pain and recurrent disease.