The incidence of epilepsy in the UK is estimated to be 50 per 100,000 per year and up to 1% of the population have active epilepsy. The diagnosis of epilepsy will usually be made in a neurology clinic. A generalised seizure as part of a generalised epilepsy syndrome may occur without warning but may be preceded by blank spells or myoclonic jerks. A generalised seizure with focal onset may be preceded by an aura. Brain imaging is required in almost all cases where epilepsy is suspected, the only possible exception being people with generalised epilepsies proven on EEG. MRI is the imaging modality of choice.