“Seizures are unpredictable. When a person has a seizure, it is usually not in a doctor’s office or other medical setting where health care providers can observe what is happening, so diagnosing seizures is a challenge. Accurate diagnosis depends on taking a careful medical history and using brain imaging and other tests to assess abnormal patterns of electrical activity in the brain. Proper diagnosis of seizures and epilepsy is essential for effective treatment. Diagnostic tests can help determine if and where a lesion in the brain is causing seizures. . In the majority of cases, there may be no cause that can be discovered for epilepsy or in some cases there are actual causes.”

John Hopkins Medicine (https://www.hopkinsmedicine.org/health/conditions-and-diseases/epilepsy)