Facial muscle spasm, also known as facial muscle twitching, manifests as involuntary twitching of one side of the face. The twitching is paroxysmal and irregular, with varying degrees, and can be aggravated by fatigue, mental stress and voluntary movements. The onset of the twitching mostly starts from the orbicularis oculi muscle and then involves the whole face. The disease mostly occurs after middle age and is commonly seen in women. So, what are the characteristics of facial myospasm? The following are the characteristics of facial muscle spasm: 1. involuntary twitching that cannot be controlled by the voluntary will. 2. 2, every time tension or fatigue, emotional excitement, alcohol and other triggers intensify. 3.Starting from the lower eyelid and gradually radiating to the whole face. 4, There are no other signs and symptoms.5 CT or MR examinations generally have no positive findings. You can observe it for a while and then talk about it, and if it is really curable, undergo surgical treatment.