Menu Healthy Lifestyle Diseases & Conditions First Aid Symptoms Tests & Procedures Videos Definitions FAQs EpilepsyUpdated: 2017-06-13OverviewEpilepsy is a disorder in which the nerve cell activity in the brain is disturbed. This disturbance causes seizures.SymptomsDuring a seizure, a person experiences abnormal behavior, symptoms, and sensations, including loss of consciousness.TreatmentsEpilepsy can be treated with drugs, surgery, and other therapies. © 1998-2022 Mayo Foundation for Medical Education and Research(MFMER). All rights reserved. Terms of Use