Patient's question:
Born 2 days later, jaundice appeared. On the 4th and 5th days, blue light treatment reduced jaundice to 13.1. On the 7th day, it rose again to around 15.Doctor's answer:
The liver enzyme system in newborns is not yet fully developed, so the bilirubin they produce cannot be converted in a timely manner. Additionally, the sterile intestines of newborns can also affect bilirubin metabolism. The combined result of these factors leads to an increase in bilirubin in the newborn's blood, causing jaundice. Since this is only a temporary phenomenon, it is called physiological jaundice.