Seizures are caused by an attack of too much activity in the brain. A child who has a seizure may lose consciousness (black out) for a short time; shake strongly all over his body; have unusual, repeated body movements; have “drop attacks”; have seizures in his sleep; or stare blankly into space.

Epilepsy is defined as 2 or more seizures when the child does not have a fever or another medical reason for the seizure.

About 1 in 4 children with autism spectrum disorder (ASD) has seizures. Seizures usually start in early childhood or the early teen years. Children with ASD who have a lower IQ or cannot speak have the highest risk for seizures.

Children with ASD often have repetitive movements and staring episodes. A doctor can often tell which repetitive behaviors might be seizures. A test called electroencephalography (EEG) can record electrical activity in the brain and help...

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