Night terrors are most often seen in children, and are mostly clinical manifestations of sudden shouting, commotion, nervousness, unconsciousness, or even not recognizing one’s parents, lasting several minutes and then quieting down, and then being able to go back to sleep. Patients can partially recall the seizure. Some patients say they are having a nightmare after waking up, and there is a feeling of pressure, stuffiness or suffocation, etc., occasionally accompanied by discipline. Sometimes they are caused by overexcitement, fatigue, listening to or watching scary movies or TV. However, night terrors are not seizures. The disease should be distinguished from epileptic complex partial seizures, and EEG is the main basis for differentiation. Night terrors do not have abnormal EEG discharges, while epilepsy has abnormal epileptic waves. It is easy to distinguish from nocturnal seizures according to clinical manifestations. For unclear diagnosis and difficult identification, polysomnography with additional EEG electrodes for two consecutive nights is required.