Facial spasm is a common cranial nerve disease, caused by the compression of the facial nerve in the brainstem by blood vessels, resulting in a “short circuit” of the nerve and causing facial muscle twitching. According to statistics, the global incidence rate is 15 to 18 million people, mostly in adults in high latitudes or areas with distinct seasons and a history of hypertension and arteriosclerosis, with the greatest number of people between 30 and 50 years of age, and the incidence rate of women is higher than that of men. Foreign studies suggest that the arterioles on the surface of the cerebellum of people in colder regions harden with age and become lodged deeper in the cerebral sulcus, thus compressing the sensitive area of the facial nerve root more often than others. The facial muscle twitches mostly originate from the tremor of the muscles of the lower eyelid on one side of the face, often occurring first in the eyelid, similar to an eyelid jump, and then gradually expanding in scope, mostly spreading to other facial muscles, the corners of the mouth, and up to the broad neck muscles after a few months. There is no aura before the attack, and the attack is characterized by rapid and frequent muscle twitching for a few seconds to a few minutes each time, with everything as normal in the interval. It can be aggravated by emotional excitement, tension, talking with strangers, exertion or long reading time, etc., while the symptoms are reduced when resting or emotionally stable. In some patients, even the facial muscles are tonicly contracted and the corners of the mouth are continuously tilted to the diseased side. In addition, some patients may also have tinnitus, vertigo, hearing loss, etc. The disease is not hereditary or contagious. Currently, the main treatments for facial myoclonus are: medication, radiofrequency temperature-controlled thermocoagulation therapy, Chinese herbal medicine and acupuncture. Clinical practice has found that intracranial manifest microvascular decompression is the most effective method, with a surgical efficiency of more than 90% and immediate results.