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Seizure Symptoms and Causes

A seizure occurs when part(s) of the brain receives a burst of abnormal electrical signals that temporarily interrupts normal electrical brain function. There are several different types of seizures. Symptoms of a seizure occur suddenly and may include changes in alertness, mood and vision; hallucinations; falling; twitching of the muscles; and muscle tension that causes twisting and shaking of the entire body. Causes of a seizure can include abnormal levels of sodium or glucose in the blood; infections that affect the brain; brain injury; brain tumors; dementia; kidney or liver failure; use of illegal street drugs, and withdrawal from street drugs or alcohol.