Facial myoclonus mainly refers to a paroxysmal, irregular and involuntary twitching of the muscles on one side of the face. In mild cases, each twitch lasts for a few seconds or a dozen seconds and then stops, while in severe cases, each twitch lasts for a few minutes or even ten minutes, and some even twitch for an uncountable number of minutes each time. Although this disease has no direct impact on the safety of human life, its frequent seizures can bring many troublesome problems to patients, such as irritable mood, crooked mouth, small eyelids and facial atrophy. For facial spasm, when patients first discover the condition, they think that the biggest feature of this disease is facial twitching, but it does not hurt, so they do not pay special attention to it, and there are patients who think it will heal itself, so they delay the time to seek medical attention, resulting in the condition finally developing gradually into irreversible, in this case, patients only go to the hospital, some hospitals often prescribe some drugs to patients to relieve the condition, common ones are carbamazepine and The effect of carbamazepine on some light patients may play a temporary relief of symptoms, but for the treatment of heavy patients basically have no effect, and long-term use of such drugs will bring some side effects on the patient’s body. In the face of the current situation, the medical profession after continuous research and summary, found that facial muscle spasm is mainly caused by blood vessels to the facial nerve root, according to this principle, through a way to lift the compression of blood vessels on the nerve, can be cured facial muscle spasm, and surgery is a feasible means. Therefore, for facial spasm, patients are recommended to undergo surgery. Microvascular decompression is a procedure with outstanding efficacy in treating facial muscle spasm. The procedure is performed by carefully probing the facial nerve root under a microscope, finding the area of compression caused by the blood vessel on the facial nerve root, gently pushing away the responsible blood vessel, and isolating it with a special tefflon cotton pad to complete the decompression procedure.