Facial palsy and facial muscle spasm are both problems of the facial nerve, but they are completely different diseases and are treated in different ways. Facial palsy is also known as facial nerve palsy, commonly known as “crooked mouth”, “facial neuritis”, “crooked mouth wind”, etc. It is a common disease characterized by motor dysfunction of the facial expression muscles, specifically, the performance of the mouth and eyes are crooked. So how to distinguish these two diseases, today we will answer this question for you. The difference between facial palsy and facial muscle spasm is as follows: 1. Facial palsy is paralysis of the facial muscles, while facial muscle spasm is involuntary movement of the facial muscles. 2, facial palsy is divided into peripheral facial palsy and central facial palsy, central facial palsy is the part of the face below the eye fissure, peripheral facial palsy is the paralysis of the entire side of the facial muscles, while facial muscle spasm generally starts early with involuntary twitching of the eyelid muscle, which then triggers involuntary twitching of the corners of the mouth and face. 3, facial palsy is mostly seen in the spring, winter and other colder seasons, it does not have a certain age group, but facial muscle spasm is mostly seen in women, generally with fatigue, work pressure, sleep is not good when the hair will be more powerful. Facial palsy needs to be treated for the primary disease, using drugs, massage, physical therapy, acupuncture and other non-surgical methods to promote inflammation, edema reduction and nerve function recovery, and if necessary, surgical treatment can be used. For central facial palsy, appropriate treatment is given for different etiologies. Treatment of facial palsy generally has a good prognosis, with about 85% of patients recovering completely without sequelae. Patients with severe facial asymmetry may have persistent symptoms that impair the patient’s quality of life. Central facial palsy can tend to have a poor prognosis and can be life-threatening in severe cases. The most effective treatment for facial spasm is microvascular decompression, in which the blood vessels compressing the facial nerve are surgically separated and fixed, so that the facial twitching disappears immediately. Microvascular decompression is the first choice for clinical treatment of facial spasm, which has the characteristics of less trauma, high safety and cure rate, and low complication rate, especially the complete preservation of blood vessel and nerve function, making it the most effective treatment for facial spasm at present.