Why does facial muscle spasm cause neck twitching? We’ve all heard that facial muscle spasms can make facial muscles twitch, but why does it involve the neck? This is because the facial nerve is in charge of the direction of the facial muscles, and the facial nerve is a mixed nerve going, mainly motor nerve fibers, which mainly manage facial expressions. The motor fibers are divided into 5 branches. They are the temporal branch, which is generally rarely invaded by peripheral blood vessels. The second is the zygomatic branch, which is prone to eyelid fluttering when this branch is invaded by the peripheral blood vessels. 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 a spacer between the nerve and the vessel, thus releasing the compression of the vessel on the facial nerve root and restoring the normal function of the facial nerve.