Facial muscle spasm is twitching on one side of the face (some people have bilateral spasms), and the more nervous and excited the spasm is, the more serious it is. As the initial symptom of facial myospasm is eyelid jumping, folk say “left eye jumping for money, right eye jumping for disaster”, so it usually does not attract people’s attention.
After a period of time, the lesion will develop into a facial muscle spasm that will move to the corners of the mouth and, in severe cases, to the neck. Facial muscle spasm can be divided into two types, one is primary facial muscle spasm, and the other is facial muscle spasm produced by the sequelae of facial paralysis. The two types can be distinguished by their symptom presentation. In primary facial myospasm, it can occur even in the resting state, and the spasm is relieved after a few minutes and is uncontrolled; in facial myospasm produced by the sequelae of facial palsy, it is produced only when doing actions such as blinking and raising eyebrows.