Mild abnormal brain waves in children generally refer to a mild increase in the slow waves of the EEG, which may be seen in normal children or may suggest the presence of neurological diseases, such as infectious encephalitis. Common causes and treatments a. Physiological factors: If children do not have obvious clinical symptoms, disease is generally not considered a problem, but may only be affected by physiological factors such as mood swings and mental agitation. It is recommended to review regularly, eat more fresh vegetables and fruits, and pay attention to adequate rest. Second, pathological factors: 1. Infectious encephalitis: If a child has some clinical manifestations such as fever, headache, drowsiness, etc., along with mild abnormalities of brain waves, pay attention to possible infectious encephalitis. Bacteria and viruses can cause infection, and the clinical symptoms can be mild or severe. It is recommended that the patient be closely observed by a doctor in a timely manner, and that the diagnosis be clarified by laboratory tests such as blood tests, brain CT, and cerebrospinal fluid checks, and that the child’s nutrition and energy supply be ensured. After the improvement of encephalitis, the mild abnormalities of EEG also improve naturally; 2. Hypoglycemia: mild abnormalities of EEG may also be related to the patient’s low blood sugar. If children are neglecting meals for many days will lead to low blood sugar, it is recommended to supplement sugar in time and pay attention to the diversification of diet. If there are only mild abnormalities in the EEG, it cannot be used as a basis for the disease. It is recommended that multiple examinations and clinical manifestations be integrated before making a judgment.