A febrile seizure is a type of seizure that happens in a child who has a fever greater than 101°F. These seizures typically affect children ages 3 months to 6 years old. But they can sometimes affect children as young as 1 month old. The seizure causes:
- The child's muscles to stiffen
- The child's arms and legs to shake
- The child not to respond
- Eyes roll back in head
Your child may be drowsy and confused for up to 30 minutes afterward. The seizure often starts as the fever is beginning. It can be the first sign the child is ill. About 1 in 3 children who have had a febrile seizure may have another. Febrile seizures rarely cause any long-term problems. They usually stop by age 6.
Febrile seizures occur when a child has a fever from an illness, such as an ear infection or a viral illness. The seizure is a symptom of the fever. However, sometimes infections of the brain or spinal fluid can cause fevers. In these cases, the seizure is a sign of a more serious infection. Because of this, when a child has a fever and a seizure, it's important to see a doctor so they can figure out the cause of the fever and make sure there is no serious infection.