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Table of Contents (click to jump to sections)

What are Febrile Seizures?
Is there any treatment?
What is the prognosis?
What research is being done?

Organizations
Related NINDS Publications

What are Febrile Seizures?
Febrile seizures are convulsions brought on by a fever in infants or small children. During a febrile seizure, a child often loses consciousness and shakes, moving limbs on both sides of the body. Less commonly, the child becomes rigid or has twitches in only a portion of the body. Most febrile seizures last a minute or two; some can be as brief as a few seconds, while others last for more than 15 minutes. To prevent accidental injury, the child should be placed on a protected surface such as the floor or ground. The child should not be held or restrained during a convulsion. To prevent choking, the child should be placed on his or her side or stomach. When possible, the parent should gently remove all objects in the child's mouth. The parent should never place anything in the child's mouth during a convulsion. Once the seizure has ended, the child should be taken to his or her doctor to check for the source of the fever. Doctors sometimes perform tests to be sure that seizures are not caused by something other than simply the fever itself. The majority of children with febrile seizures have rectal temperatures greater than 102 degrees F. Most febrile seizures occur during the first day of a child's fever. Febrile seizures usually occur in children between the ages of 6 months and 5 years and are particularly common in toddlers. A few factors appear to boost a child's risk of having recurrent febrile seizures, including young age (less than 15 months) during the first seizures, frequent fevers, and having immediate family members with a history of febrile seizures.

Is there any treatment?
A child who has a febrile seizure usually doesn't need to be hospitalized. If the seizure is prsy, delayed development, or other neurological abnormalities.

What research is being done?
NINDS-supported scientists are exploring what environmental and genetic risk factors make children susceptible to febrile seizures. Investigators continue to monitor the long-term impact that febrile seizures might have on intelligence, behavior, school achievement, and the development of epilepsy. For example, scientists conducting studies in animals are assessing the effects of seizures and anticonvulsant drugs on brain development. Investigators also continue to explore which drugs can effectively treat or prevent febrile seizures and to check for side effects of these medicines.

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