What should I do if my newborn has jaundice? Parents should not worry too much about this problem. Because the liver function of newborns is not yet developed, sixty percent of full-term babies will develop neonatal jaundice in the first week of life; eighty percent of premature babies will develop neonatal jaundice. In a normal baby, a slight jaundice during the first week of life can be considered a normal phenomenon. However, if the jaundice is too severe or lasts too long, it is important to consider that there are some abnormalities in the baby’s body. The main treatment for neonatal jaundice is blue light irradiation, which is very safe. Some babies may experience side effects such as rashes and diarrhea, which disappear when the irradiation is stopped. However, if the jaundice is severe, or if the bilirubin level continues to rise after light therapy, the baby will need blood exchange therapy. Blood exchange therapy is indicated for hemolytic jaundice. It is an important life-saving measure in cases of severe hemolysis in children. Blood exchange can be used to exchange out sensitized red blood cells and immune antibodies in the serum to prevent further hemolysis; to lower bilirubin to prevent nuclear jaundice; to correct anemia caused by hemolysis and to prevent hypoxia and cardiac insufficiency. After the widespread use of phototherapy, blood exchange has been greatly reduced. In the early stage, we should feed the newborn as early as possible so that the fetal stool can be excreted as soon as possible, because the fetal stool contains a lot of bilirubin, because if the fetal stool is not excreted cleanly bilirubin will be reabsorbed into the blood through the special hepatic and intestinal circulation of the newborn, causing an increase in jaundice. In summary, neonatal jaundice is not terrible. But some people may wonder, what is the normal value of neonatal jaundice? How can I tell if my baby has jaundice? What is the normal value of jaundice in newborns? In a normal full-term baby, neonatal jaundice appears on the second to fourth day and peaks on the fourth to fifth day on average and disappears within a week to two weeks. The color of neonatal jaundice should not be too dark (the shade of jaundice can be determined by consulting a physician or by a blood test), and the average value of bile pigment is about 11 to 12 mg. Neonatal jaundice has a limit and is not golden yellow in color. The jaundice is mainly on the face and trunk, while the lower legs, forearms, hands and feet are often not visibly jaundiced. If blood is drawn to determine bilirubin, the peak jaundice does not exceed 12 mg/dL in full-term infants and 15 mg/dL in preterm infants. Neonatal jaundice is considered pathological if it has one of the following characteristics: 1, jaundice appears too early: within 24 hours after birth in term infants and within 48 hours in preterm infants; 2, jaundice is more severe: serum bilirubin exceeds the average value for normal infants of the same age, or rises more than 85.5 μmol/L (5 mg/dl) daily; 3, jaundice progresses rapidly, i.e., it deepens within one day A lot; 4, jaundice lasts for a long time (more than 2 weeks in term infants, more than 3 weeks in preterm infants) or reappears after the jaundice subsides; 5, jaundice is accompanied by other clinical symptoms, or serum conjugated bilirubin is greater than 25.7 μmol/L (1.5 mg/dl).