Many parents of patients who witnessed their patients’ seizures told doctors, “I was really scared silly when I first saw my child having a seizure. It was so scary when he had an attack! I was really worried that he would die.” Can a seizure cause sudden death? The answer is that they do not usually lead to death, except in severe grand mal seizures of a continuous nature. Theoretically, a seizure of 20 minutes can lead to hypoxia in the cerebral cortex, a seizure of 60 minutes, damage to the hippocampus, walnut, cerebellum, thalamus and other cells, followed by functional disorders and cardiopulmonary failure; if the persistent state exceeds 13 hours, hypoxic and ischemic brain damage lasting too long can cause systemic failure and death. This is a small number of cases, accounting for only 0.1% of epilepsy. Another cause of sudden death in epileptic patients is an accident caused by impaired consciousness during a seizure, such as a fall, drowning, or suffocation caused by a clothespin blocking the nasal cavity. The average seizure lasts only a few seconds, tens of seconds or 2-3 minutes and recovers spontaneously without special treatment.