Sequelae that may occur after newborns are irradiated with blue light include fever, diarrhea, cyanosis, hemolysis and so on. 1. Fever: some newborns in the blue light irradiation, there will be a slight fever, but the temperature is generally below 38 ℃, stop the blue light irradiation after the body temperature will gradually return to normal, can not be too worried. If you find that the baby’s temperature continues to rise and does not fall, it is recommended to consult a doctor in a timely manner, cooling treatment. 2. Diarrhea: when the baby has jaundice, there will be a high level of bilirubin in the body, after blue light irradiation, the bilirubin will be changed into water-soluble isomers, and will be excreted through the intestine, and the baby may have a slight diarrhea. 3. Bronze: jaundice in the baby’s body bilirubin will rise, after blue light irradiation, bilirubin is oxidized will appear bronze, the baby’s skin color will deepen, when the blue light irradiation stops, the symptoms can be relieved. 4. Occurrence of hemolysis: long time in the state of blue light irradiation, may lead to the baby’s body riboflavin level decreased, which will aggravate the hemolysis, severe anemia, jaundice aggravation, etc., need to pay attention to. Therefore, newborns receiving blue light irradiation treatment, need to strictly follow the indications, there may be a slight fever, diarrhea, bronchitis and hemolysis and other sequelae, parents are advised to pay attention. Parents are advised to pay attention to the above situations. When the baby is found to have the above situations, consult a doctor in time for examination, and observe and follow up if the situation is mild, while symptomatic treatment is needed when the situation is more serious.