EEG abnormalities in children, commonly due to epilepsy, encephalitis, brain tumors, etc., need to be combined with clinical and determine the treatment plan. Common causes and treatments 1. Epilepsy: a neurological syndrome caused by brain dysfunction, manifesting as limb spasms with closed teeth, upturned eyes and foaming at the mouth. If the cause is clearly identified, such as focal cortical dysplasia, hemangiomatosis, early surgical treatment is recommended; 2. encephalitis; mainly caused by cortical lesions, manifested as drowsiness, confusion, coma, etc.; it is recommended to visit the doctor for examination and treatment according to the cause; 3. brain tumor: it can also lead to abnormal EEG, which can be treated symptomatically according to the doctor’s recommendation, such as surgical removal of the tumor. Note that about 5-7% of normal children can have mild EEG abnormalities, and the degree of EEG abnormality is sometimes not completely consistent with the degree of disease. Therefore, it is recommended to combine common symptoms and other test results to confirm the diagnosis by a professional doctor. In addition, parents should be more observant and promptly seek medical examination if abnormalities occur.