Mayo Clinic Health Manager
Get free personalized health guidance for you and your family.
Get StartedRisk factors
By Mayo Clinic staffYoung age is the strongest risk factor. About one in 25 children will experience a febrile seizure. Most febrile seizures occur in children between the ages of 6 months and 5 years and are particularly common in toddlers. Children rarely develop their first febrile seizure before the age of 6 months or have them after 3 years of age. Some children inherit a family's tendency to have seizures with a fever.