Fever seizures

Also known as: Fever convulsions, Febrile seizures
Fever seizures (sometimes called fever convulsions) are uncontrolled muscle spasms that can occur in children who have a rapid increase in body temperature. You may not even know your child has a fever. The rapid increase in body temperature in a short period of time may cause the fever seizure. Once a fever has reached a high temperature, the risk of a seizure is probably over. Most children who have a fever seizure have temperatures above 102 °F (39 °C).