Taking antiepileptic drugs and still having mild abnormalities on the EEG is associated with epilepsy itself, and may also be associated with brain damage and brain atrophy. The main treatment for epilepsy is oral antiepileptic drugs, most of the epilepsy can be effectively controlled after taking oral antiepileptic drugs, and the review of EEG can be normal, or there may be mild abnormalities. EEG abnormalities are related to abnormal discharges from the epilepsy foci, and may be seen when epilepsy is not effectively controlled despite oral antiepileptic drug therapy. It is also possible that the epilepsy has been effectively controlled, but the EEG may still show mildly abnormal waves, but not enough to cause a clinical seizure. Patients with epilepsy who have intracranial lesions, such as brain atrophy and brain injury, can still have abnormal EEGs even though they are taking oral antiepileptic drugs and their epilepsy has been effectively controlled. The effectiveness of oral antiepileptic drugs for epileptic patients is mainly related to the seizure situation. If the EEG is still abnormal, do not be too nervous, and consult a medical professional.