Febrile seizures are the most commonly occurring seizures in the first 60 months of life. Caregiver anxiety can often lead to requests for neurodiagnostic testing. Attention should be directed at finding the cause of fever and treating it. Electroencephalography tests are costly and can increase caregiver and child anxiety without changing the outcome or course of treatment. Electroencephalography has not been shown to predict recurrence of febrile seizures or future epilepsy in patients with simple febrile seizures. Electroencephalography can be ordered for children who present with afebrile seizures and complex febrile seizures, and in children with neurological insult.