There are several broad categories of seizures, mainly built around where in the brain they start and how widespread the activity becomes. Direct answer
- Focal (partial) seizures: begin in one area or hemisphere of the brain and may stay localized or spread to other areas. They can occur with retained awareness (simple focal) or impaired awareness (focal with impaired awareness).
- Generalized seizures: involve both sides of the brain from the start and include several subtypes such as absence seizures, tonic seizures, clonic seizures, tonic-clonic (formerly grand mal) seizures, myoclonic seizures, and atonic (drop attacks).
- Unknown onset seizures: when it’s unclear where the seizure started, either because the information isn’t available or the onset cannot be determined.
- Seizure mimics: not true epileptic seizures but events that resemble seizures (for example, psychogenic non-epileptic seizures) and require different evaluation.
If you want, I can present a concise, side-by-side comparison of the main categories and their typical signs to help with recognition or reporting to a healthcare provider.
