A febrile seizure is a generalized tonic-clonic (grand mal) seizure that occurs in some children as a response to a fever. Febrile seizures are usually associated with rapidly rising fevers, and usually occur early in the fever rather than later.
Review Date 1/1/2020
Updated by: Neil K. Kaneshiro, MD, MHA, Clinical Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.