What are the common symptoms of a seizure?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Seizure symptoms often include sudden behavioral changes, uncontrolled muscle jerking, loss of consciousness, staring spells, confusion, and sensory disturbances such as unusual smells, tastes, or visual changes. Symptoms vary based on seizure type—focal seizures may affect one part of the body, while generalized seizures impact the entire brain and body.

Because seizure symptoms can mimic other conditions like fainting, migraines, or panic attacks, identifying the cause early is critical for proper treatment. If you or a loved one has experienced these symptoms, don't wait to get clarity. Take a free, instant, online symptom check to better understand what may be happening and confidently plan your next steps.

Reviewed for medical accuracy: 07/20/2026

Important Next Steps

Learn if seizure symptoms need care now Discover likely causes of seizure symptoms See if seizures could explain this Find OTC options for seizure-related symptoms Find a doctor for seizure care Discover home remedies for seizure symptoms Understand if your symptoms need urgent care

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Explanation

Seizures happen due to sudden abnormal electrical activity in the brain, and symptoms can differ widely:

Convulsive seizures: Involve uncontrollable jerking or stiffening of muscles, loss of awareness, and sometimes loss of bladder control. Absence seizures: Brief episodes of staring, blinking, or subtle body movements lasting a few seconds. Auras: Some people experience warning sensations like strange smells, tastes, or feelings before a seizure. Confusion or memory loss: After a seizure, it's common to feel confused or tired.

If you're experiencing any of these symptoms or unusual sensations, you can check your symptoms with a free AI-powered assessment at https://ubie.app/us-symptom-checker to help determine if you should seek immediate medical attention. If you suspect someone is having a seizure, keep them safe, protect their head, and seek medical help, especially if the seizure lasts more than 5 minutes or if it's their first seizure.

(References)

Lüders H, Acharya J, Baumgartner C, Benbadis S, Bleasel A, Burgess R, et al. (1998). Semiological seizure classification. Epilepsia, 9738682.
Gavvala JR, & Schuele SU. (2016). New-Onset Seizure in Adults and Adolescents: A Review. JAMA, 28027373.
Fisher RS, Cross JH, French JA, Higurashi N, Hirsch E, Jansen FE, et al. (2017). Operational classification of seizure types by the .... Epilepsia, 28276060.

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