We often encounter patients with intermittent episodes of eyelid twitching and eye narrowing on one side of the eye, which may be accompanied by twitching of the corners of the mouth, tilted to the same side, and may be aggravated or triggered by poor rest, nervousness or encounters with strangers. If such a typical manifestation exists, then you are suffering from the disease of upper myoclonus. Facial myoclonus is a common neurological disorder. The majority (99%) of patients suffer from age-related dislocation of the arterial vessels in the posterior cranial recess due to blood flow shock, which compresses the facial nerve root. Long-term pulsatile shock stimulates the facial nerve to increase its excitability, which makes the ipsilateral facial muscles tense and twitch. Currently, the two formal methods for treating facial muscle spasm are microvascular decompression surgery (MVD) and local closure with botulinum toxin A. Vascular decompression surgery is a minimally invasive surgical approach to explore the intracranial segment of the facial nerve under a microscope to discover and isolate the responsible blood vessels compressing the facial nerve root with special materials from the facial nerve. The procedure is safe, with a success rate of 95% and an immediate remission rate of 85%, and is the only method that can completely cure the disease. Botulinum toxin A local closure uses the pharmacological effect of this drug to temporarily block the nerve impulse conduction of the nerve-muscle junction, and injects the drug into the twitching muscles of the face to temporarily relieve the facial muscle spasm, the effect of a single injection can be maintained for about 3 months, suitable for patients with serious diseases that cannot accept surgery or do not want to accept surgery. For facial muscle spasms with mild symptoms and a short history, they can be treated conservatively. Some patients can maintain mild symptoms without aggravation for a long time or even complete remission for a short time. Such patients can be observed without any treatment after MRI examination to exclude tumors and vascular malformations (1% of the cases). Patients with a short history (within 3 months) are contraindicated to surgery, drug closure and other special treatments. Because the facial nerve is the most complex nerve in the cranial nerve and contains many different nerve fibers, temporary dysfunction can lead to facial muscle twitching, so strictly speaking, it cannot be diagnosed as facial muscle spasm, and special treatment should not be taken. It is important to mention that acupuncture should not be used to treat facial muscle spasm. Because acupuncture is used to repair paralyzed nerves through mechanical or electrical stimulation of the muscles, in other words, it has an excitatory effect on the nerves and muscles, and patients with facial muscle spasm are in a state of high excitement, so acupuncture is counterproductive.