Normal brain function cannot return until the electrical bursts subside. Conditions in the brain that produce these episodes may have been present since birth, or they may develop later in life due to injury, infections, structural abnormalities in the brain, exposure to toxic agents, or for reasons that are still not well understood. Many illnesses or severe injuries can affect the brain enough to produce a single seizure. When seizures continue to occur for unknown reasons or because of an underlying problem that cannot be corrected, the condition is known as epilepsy. Epilepsy affects people of all ages, all nations, and all races.
Epilepsy can also occur in animals, including dogs, cats, rabbits, and mice.
Seizures are a symptom of epilepsy. Epilepsy is the underlying tendency of the brain to produce sudden bursts of electrical energy that disrupt other brain functions. Having a single seizure does not necessarily mean a person has epilepsy. Neurologists, pediatric neurologists, pediatricians, neurosurgeons, internists and family physicians all provide treatment for epilepsy. Specialized care for people whose seizures are difficult to control is available in large medical centers, neurological clinics at university and other hospitals, and from neurological specialists in private practice.