What is the most common cause of seizures in young children?

High fever, particularly in the form of febrile seizures, is the most common cause of seizures in young children. Febrile seizures typically occur in children between the ages of 6 months and 5 years and are often triggered by a rapid rise in body temperature, usually due to infections such as viral illnesses. These seizures are generally brief and are not associated with long-term health problems, making them a common phenomenon among this age group.

In contrast, head trauma, electrolyte imbalances, and genetic disorders are less frequent causes of seizures in young children. While they can certainly lead to seizures, they are not as prevalent as febrile seizures. Understanding this context helps clarify why high fever is recognized as the leading cause in this age demographic.