Facial muscle spasm, also known as facial muscle twitching, is relatively common in clinical practice and is also very torturous. Facial muscle spasm mainly manifests as involuntary twitching on one side of the face, starting with eyelid fluttering for a long time, and then developing into mouth corner twitching and facial muscle twitching, with paroxysmal and irregular twitching, which can be aggravated by fatigue, mental tension and voluntary movement. Facial muscle spasm starts with light twitching, lasting only a few seconds, and then gradually lengthens up to several minutes or longer, while the interval is gradually shortened and the twitching gradually increases in frequency. In severe cases, it is tonic, causing the ipsilateral eyes to be unable to open, the corners of the mouth to be skewed to the ipsilateral side, and the inability to speak, often aggravated by fatigue, mental tension, and voluntary movement, but it cannot imitate or control its onset by itself. A convulsion can be as short as a few seconds or as long as ten minutes, with intervals of variable length. Patients feel distracted and unable to work or study, which seriously affects their physical and mental health. Although facial muscle spasm is not fatal, frequent facial twitching, seizures at any time and anywhere, the huge pain of torture and psychological burden, especially the strange eyes of the outside world may crush the patient, and some people even commit suicide as a result. Therefore, early treatment is also needed. What is the good method of facial muscle spasm treatment? At present, the clinical use of microvascular decompression to treat facial muscle spasm has achieved good clinical results. Facial muscle spasm is mostly caused by the compression of the facial nerve root by the surrounding arterial vessels, so microvascular decompression is recognized as the standard method for treating facial muscle spasm in the medical field. By surgically locating the facial nerve root, pushing away the responsible blood vessel that is compressing the nerve, and isolating it with a special medical spacer to prevent secondary compression, facial muscle spasm is cured with definite and significant results.