If you want to have a 24-hour EEG, you need to make an appointment with the hospital’s EEG office in advance, and the doctor will attach the electrodes of the EEG to the patient’s head. This test monitors the patient’s brain waves while the patient is active, sleeping, etc. The results are plotted on a graph, and the doctor can diagnose the presence of cerebral epilepsy or other brain abnormalities through the patient’s other symptoms. The 24-hour monitoring of dynamic EEG makes up for the shortcomings of conventional EEG, as the patient can not only carry it around and move freely, but also make long-time recordings, which makes its positive diagnostic rate higher than that of conventional EEG, and is especially valuable for EEG studies of epilepsy. In addition, since the electrodes of 24-hour EEG need to be glued to the scalp, patients should wash their hair before the examination and avoid applying hair conditioner, hairspray and other hair styling products. For reference when reading the chart.