The International League Against Epilepsy (ILAE) has revised the clinical definition of epilepsy to better reflect its practical application. The new definition includes cases where a person has one unprovoked seizure with a high risk of recurrence, or a diagnosis of an epilepsy syndrome. It also allows for the possibility of "resolved" epilepsy, where a person has been seizure-free for 10 years and off medication for at least 5 years. The revised definition aims to align with how epileptologists think about epilepsy and to improve clinical decision-making. It acknowledges that epilepsy is not always lifelong and that some individuals may no longer have epilepsy after a long period of seizure freedom. The definition also addresses the inclusion of reflex epilepsy syndromes and the challenges of diagnosing epilepsy in cases with uncertain seizure history. The revised definition may have implications for treatment, insurance, and legislation, as it affects how epilepsy is diagnosed and managed. The Task Force emphasized the importance of individualized treatment decisions and the need for further research to refine the definition. The new definition is intended for clinical use and may not be suitable for all research studies. The Task Force also acknowledged the complexities of defining epilepsy and the need for ongoing discussion and refinement of the definition.The International League Against Epilepsy (ILAE) has revised the clinical definition of epilepsy to better reflect its practical application. The new definition includes cases where a person has one unprovoked seizure with a high risk of recurrence, or a diagnosis of an epilepsy syndrome. It also allows for the possibility of "resolved" epilepsy, where a person has been seizure-free for 10 years and off medication for at least 5 years. The revised definition aims to align with how epileptologists think about epilepsy and to improve clinical decision-making. It acknowledges that epilepsy is not always lifelong and that some individuals may no longer have epilepsy after a long period of seizure freedom. The definition also addresses the inclusion of reflex epilepsy syndromes and the challenges of diagnosing epilepsy in cases with uncertain seizure history. The revised definition may have implications for treatment, insurance, and legislation, as it affects how epilepsy is diagnosed and managed. The Task Force emphasized the importance of individualized treatment decisions and the need for further research to refine the definition. The new definition is intended for clinical use and may not be suitable for all research studies. The Task Force also acknowledged the complexities of defining epilepsy and the need for ongoing discussion and refinement of the definition.