Patients: When should I choose to go to the hospital for epilepsy screening? What are the items? Jian Chen, Department of Internal Medicine, Sanming Integrated Hospital of Traditional Chinese and Western Medicine: The way and time of examination for epilepsy is determined by the doctor according to its history and form of seizures. In case of traumatic brain injury, cranial imaging is essential and is not limited to a specific time, but can be done at any time to find out whether there are morphological changes in the skull. If primary epilepsy is examined to understand the condition, the active degree of the lesion, the site of the lesion, etc., then EEG, cranial MR and other related tests are routinely selected. The latter can also be done at random, while EEG needs to be done in a time-sensitive manner. Because nerve cell activity goes through the process of “excitation – inhibition – re-excitation”, it is generally appropriate to examine the nerve cells 6 hours after the onset of the disease. The results are often not available immediately after the onset of the disease, because the brain lesion is in an inhibited state after the excitation and discharge of cells.