A Seizure, also known as an Epileptic Fit, is a brief episode due to abnormal excessive electrical in the brain. The outward effect can vary from uncontrolled jerking movement (tonic-clonic seizure) to as subtle as a momentary loss of awareness (absence seizure). Diseases of the brain characterized by a predisposition to generate repeated episodes of seizures are collectively called epilepsy.
Seizures can also occur in people who do not have epilepsy for various reasons including brain trauma, drug use, elevated body temperature, low blood sugar and low levels of oxygen. Additionally, there are a number of conditions that look like epileptic seizures but are not.
Seizures and epilepsy can be effectively controlled with anti-epileptic medication. Some type of seizures which cannot be controlled with medication may be treatable by surgery.