This article is from the Epilepsy FAQ, by Andrew Patrick (firstname.lastname@example.org) with numerous contributions by others.
The diagnosis and evaluation of Epilepsy requires the physician to know
all about the seizures - when they started, the patient's appearance
before, during, and after a seizure, and any unusual behavioural
occurrences. A background of the family's health history is also
useful. In addition, an electroencephalogram (EEG) may help detect
areas of increased nerve cell activity.