Definition of facial muscle twitch Facial muscle twitch, also known as hemifacial spasm or facial muscle spasm, generally refers to primary facial muscle twitch, which mainly manifests as involuntary twitching of paroxysmal hemifacial muscles, and usually the twitching is limited to one side of the face without positive signs of the nervous system. The true etiology of primary facial muscle twitching is still unclear. It is believed that some factors stimulating certain parts of the facial nerve conduction pathway may be the cause of facial muscle twitching, and these factors may be inflammation of the facial nerve, demyelination changes or direct compression by some factors. 2. Foreign studies have reported that more than 80% of patients are due to microvascular compression of the facial nerve root, and microvascular decompression surgery has been used successfully to treat facial muscle twitching, which has become the current dominant doctrine. 3. On the contrary, the etiology of secondary facial twitches is often clearer and can be diagnosed by neurological and imaging examinations. The common causes are tumor or inflammation of the pontocerebellar horn, pontocerebellar tumor, brainstem encephalitis, medullary cavernous disease, motor neuron disease, etc. The main manifestations of facial muscle twitching 1. Facial muscle twitching occurs in middle-aged women, mostly occurs or aggravates during exertion, mental tension and voluntary movement, and the twitching can stop after sleeping. 2, the disease is paroxysmal, in the interictal period can be completely normal, the main performance of the seizure to Juniper eye, corner of the mouth twitching and one cheek area muscle trembling, the patient can not control themselves. 3. Some patients may have facial pain, headache and tinnitus during facial muscle twitching. 4. However, all neurological examinations are normal. There are various treatment methods for facial muscle twitches. For patients with small facial muscle twitches and mild symptoms, medication or physiotherapy can be used, such as the application of phenobarbital, phenytoin sodium, carbamazepine, etc. However, these treatments can only reduce the symptoms and cannot cure the disease. Patients who are not treated by the above mentioned medication or physiotherapy can choose local closure therapy, which is to temporarily interrupt the conduction function of the facial nerve by injecting alcohol and other drugs on different parts of the facial nerve conduction pathway so that the twitching symptoms can be relieved, but this treatment can only temporarily relieve the symptoms, and also cause facial muscle paralysis after the injection of drugs. (1) Facial nerve trunk or branch amputation, by destroying the conduction function of the facial nerve, to paralyze instead of twitching. (2) Microvascular decompression surgery, which is currently recognized as the first choice of treatment for facial twitching at home and abroad. It is not only simple, with small surgical risk and few complications, but also more than 95% of patients can obtain a radical cure. Therefore, reasonable choice of treatment plan can get twice the result with half the effort.