There is no shortage of eyelid fluttering and mouth twitching in our lives. If it happens once or twice, it’s fine, but if it happens frequently and the symptoms are getting more and more severe, you should consider if you have facial muscle spasm. The facial expressions of smiling, crying, frowning, pursing the lips, blinking and closing the eyes are all controlled by the facial nerve, which is a hybrid nerve, mainly motor nerve fibers, which mainly manage facial expressions. The motor fibers are divided into 5 branches. If there is a problem with any one branch, the area governed by this branch may have problems, which is the reason why some patients with facial spasm have crooked mouths and eyes, and some have more than one eyelid twitch, so which are the 5 branches? They are the temporal branch, and this branch is usually rarely invaded by the surrounding blood vessels. The second is the zygomatic branch, when this branch is invaded by the surrounding blood vessels, the eyelid twitching will easily appear. The third branch is the buccal branch, which is the branch that affects the cheeks, corners of the mouth and so on. The fourth one is the mandibular branch, which is located in the bite muscle and smile muscle. The last one is the cervical branch, when the cervical branch nerve is compressed, the neck will twitch, which is also a very serious manifestation of facial muscle spasm. So what should you do when you have such serious facial muscle spasm symptoms? If there is such a serious situation, ordinary medication is not the first option, and microvascular decompression should be performed as soon as possible to treat facial myospasm. Surgery is currently the most internationally respected treatment modality, it is based on the facial muscle spasm lesion problem from the source to solve the facial muscle spasm. Therefore, it can be said that it is a one-time surgery with lifelong benefits. Microvascular decompression refers to the magnification and reoperation of the intracranial nerve vessels through a high-powered microscope, placing the spacer between the nerve and the vessel, thus releasing the compression of the vessel on the root of the facial nerve and restoring the normal function of the facial nerve. It is also the only way to completely cure facial spasm.