Research on high-frequency oscillations (HFOs) in epilepsy is being conducted, with some studies examining their relationship to lesion size, seizure frequency, and surgical outcomes. The rates of HFOs detected on the scalp may be influenced by various factors, including lesion size and the presence of certain medical conditions. The role of HFOs in predicting seizure freedom and their occurrence in different populations, such as pediatric and neonatal patients, is also being investigated.