When we talk about jaundice in general, we mean neonatal jaundice. Under normal circumstances, jaundice appears in newborns 2-3 days after birth, peaks in 5-6 days, and then slowly subsides, completely subsiding in full-term infants two weeks after birth and in premature infants three weeks after birth. Every newborn should be routinely monitored for jaundice, and once a child is found to have pathological jaundice, it should be actively treated. First of all, after birth, the child should be monitored daily for bilirubin, and the jaundice index should be measured in the morning and evening with a neonatal transcutaneous bilirubin meter. It should be measured every day and the rise of jaundice in newborns should be dynamically observed. At the same time, the neonatologist should regularly check the baby’s face, trunk and extremities for jaundice every day. In this process, if the jaundice index of the newborn exceeds normal, or if the newborn develops jaundice within 24 hours after birth or if the jaundice index rises more than 5 mg/dl per day, the newborn should be given a blood test for liver function as soon as possible, and if necessary, a hemolysis test. series, routine blood tests, and blood cultures to clarify what causes the jaundice, in an effort to achieve early detection, early diagnosis, and early treatment of pathological jaundice, thus minimizing the occurrence of neonatal bilirubin encephalopathy. Therefore, it is particularly important to monitor neonatal jaundice to detect some pathological jaundice early, so that the child can be treated as early as possible to avoid serious complications.