Generalized tonic-clonic seizure is a seizure that involves the entire body. It is also called grand mal seizure. The terms seizure, convulsion, or epilepsy are most often associated with generalized tonic-clonic seizures.
Seizure - tonic-clonic; Seizure - grand mal; Grand mal seizure; Seizure - generalized
Causes, incidence, and risk factors
Generalized tonic-clonic seizures may occur in people of any age. They may occur once (single episode), or as part of a repeated, chronic condition (epilepsy). Some seizures are due to psychological problems (psychogenic).
Many patients with generalized tonic-clonic seizures have vision, taste, smell, or sensory changes, hallucinations, or dizziness before the seizure. This is called an aura.
Bodde NMG, Brooks JL, Baker GA, et al. Psychogenic non-epileptic seizures—diagnostic issues: a critical review. Clin Neuro Neurosurg. 2009;111:1–9.
Luc Jasmin, MD, PhD, Department of Neurosurgery, Cedars Sinai Medical Center, Los Angeles and Department of Anatomy, University of California, San Francisco, CA. Review provided by VeriMed Healthcare Network. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, Bethanne Black, Stephanie Slon, and Nissi Wang.