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These seizures are sometimes called grand mal seizures.
A generalized tonic-clonic (grand-mal) seizure typically begins with a loud cry before the individual having the seizure loses consciousness and falls to the ground.
A grand mal seizure lasts two to five minutes, and the person may be confused or have trouble talking after regaining consciousness (post-ictal state).
Untreated, petit mal seizures can recur as many as 100 times a day and may progress to grand mal seizures.