Facial myoclonus is a common clinical condition, and its main cause is the compression of the facial nerve root by the surrounding blood vessels, which leads to demyelination of the nerve, so that the nerve signal conduction will be abnormal, resulting in abnormal twitching and jumping of the facial muscles innervated by the facial nerve, thus causing the corresponding symptoms. The main manifestation of facial muscle spasm is paroxysmal involuntary twitching of one side of the face. It mostly starts with eyelid twitching, and then extends to twitching at the corners of the mouth, nose and even the whole half of the face, and in severe cases, it may also involve twitching of the broad neck muscles. This frequent facial twitching will cause great physical and psychological torment to the patient, making people distracted and seriously affecting normal life, work and study, and some people even choose to commit suicide because of the unbearable disturbance, and the consequences are very serious. So once facial spasm occurs, it is recommended that you should go to the hospital for treatment in a timely manner. The standard treatment for facial myasthenia is now recognized by the medical community as microvascular decompression. This is a minimally invasive procedure that involves making a 3-5 cm incision behind the ear, exploring the vascular-neural anatomy around the facial nerve root, finding the focal point of vascular compression, and relieving this compression to cure the facial muscle spasm. Are there any after-effects of facial muscle spasm surgery? Microvascular decompression for facial myasthenia is a very mature and minimally invasive procedure, and there are usually no sequelae. Microvascular decompression is a very precise exploration of the vascular-neural anatomical relationship and isolates the responsible vessels and nerves with special medical spacers to relieve the compression without harming the nerves or other tissues, preserving all nerve functions intact and generally without sequelae.