This article is from the Epilepsy FAQ, by Andrew Patrick (andrew@calvin.dgbt.doc.ca) with numerous contributions by others.
Many varieties of epileptic seizures occur, and frequency and form of
attacks vary greatly from person to person. With modern methods of
treatment, however, most cases can be fully controlled. Because there
are so many nuances in Epilepsy and so many different kinds of
seizures, a specific classification system is being promoted by the
International League Against Epilepsy. The International Classification
of Epilepsy Seizures has been adopted by the medical community and is
gradually replacing outdated seizure terminology including "grand mal"
and "petit mal".
The new classification scheme describes two major types of seizures:
"partial" and "generalized". It also divides each of these categories
into subcategories including simple partial, complex-partial, absence,
tonic-clonic, and other types.
 
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