Facial myasthenia will appear as facial twitching, and if left untreated for a long time, it will look like facial palsy, which is a completely different disease from facial palsy, and the treatment is also different. So how to distinguish these two diseases? Facial palsy and facial muscle spasm are both problems of the facial nerve, but they are completely different diseases, and the treatment is also different. Facial palsy refers to facial muscle paralysis, a lesion caused by damage to the facial nerve due to various reasons, which mainly manifests itself as impaired movement of facial expression muscles, such as crooked mouth, inability to raise the eyebrows when making expressions, absence of forehead lines, incomplete eyelid closure, shallowing of the nasolabial folds on the affected side, crooked mouth to the sound side, inability to puff, and leaky drinking. The vast majority of patients with facial palsy will slowly get better with oral nutritional medication. Facial spasm, on the other hand, is a paroxysmal involuntary twitching and jumping of the facial muscles, usually starting with involuntary jumping of the eyelids, progressing to the corners of the mouth and, in severe cases, extending to the entire half of the face. If the symptoms persist for three months, a diagnosis of facial spasm is made. In conclusion, facial palsy is a motor dysfunction of the facial muscles and facial spasm is a paroxysmal twitching of the muscles. What are the typical symptoms of facial muscle spasm 1. frequent blinking: the vast majority of patients have unilateral occurrence, with occasional bilateral cases occurring. 2, continuous eye jumping: the facial nerve is stimulated by vascular compression, the two muscles are excited at the same time, there will be repeated contractions, or even spasms or tremors, and the eyelids will involuntarily jump. 3, facial twitching: mainly abnormal impulses of the zygomatic branch facial nerve that governs facial muscle movements cause frequent facial twitching. 4.Mouth corner twitching: mainly the abnormal impulse of the buccal branch facial nerve that governs the facial muscle movement causes frequent twitching or skewing of the mouth corner, and in severe cases, the neck and shoulder muscles may be involved. 5, other symptoms: a few patients have mild pain in the face (called twitching pain) when twitching, and individual patients may also have headache, tinnitus and deafness on the sick side. Some patients may have weakness and atrophy of the lateral muscles of the diseased side and loss of taste in the first 2/3 of the tongue due to long-term twitching. The majority of patients with facial muscle spasm occur unilaterally, occasionally bilateral cases occur, and must be taken seriously, and patients are advised to get early treatment and early recovery.