Facial muscle twitching has two possibilities: 1, epileptic partial seizure, epileptic partial motor seizure can cause facial muscle twitching, most often involving the corners of the mouth. Generally, patients have a clear history of brain disease, perfect cranial magnetic resonance examination can be found corresponding foci, electroencephalography can be found epileptic waves. 2, facial muscle spasm, divided into physiological and pathological, in the patient’s emotional stress, excessive fatigue or drink a lot of coffee, strong tea, there will be localized facial muscle twitching, usually remove the cause of the symptom can be improved on its own. If there is no special cause of facial twitching for a long time, it is facial muscle spasm, the cause of which is not clear, in addition to facial muscle twitching, sometimes it can also involve the eyelid muscles of the eye.