This document provides an overview of epilepsy, including its epidemiology, classification, pathophysiology, signs and symptoms, and management. Epilepsy is a brain disorder caused by abnormal neuronal signaling that can cause changes in movement, behavior, or consciousness. Approximately 1% of the global population has epilepsy, with 80% of cases occurring in developing countries. While the specific cause is unknown in many cases, potential causes include brain trauma, lesions, infections, genetic factors, or substance abuse. Management involves use of anti-seizure medications like carbamazepine, phenytoin, and valproic acid. Surgery may also be an option for some patients to achieve total seizure control.