A disorder in which nerve cell activity in the brain is disturbed, causing seizures.
Epilepsy may occur as a result of a genetic disorder or an acquired brain injury, such as a trauma or stroke.
During a seizure, a person experiences abnormal behavior, symptoms, and sensations, sometimes including loss of consciousness. There are few symptoms between seizures.
Epilepsy is usually treated by medications and in some cases by surgery, devices, or dietary changes.