Secondarily Generalized Seizure

What Is It?

A secondarily generalized seizure is a seizure which starts as a partial seizure and then after some time spreads to involve both sides of the brain.

A partial seizure only involves one part of the brain on one side. A generalized seizure involves the both hemispheres simultaneously. Most seizures are either partial or generalized. However some start as a partial seizure with the patient experiencing symptoms related to a focal seizure but after many seconds or minutes of seizure activity the abnormal brain activity spreads rapidly to involve the whole brain including both hemispheres. The patient then experiences symptoms of a generalized seizure.

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Important Note: This site is not intended to offer medical advice. Every patient is different, and only your personal physician can help to counsel you about what is best for your situation. What we offer is general reference information about various disorders and treatments for your education.