Temporary jaundice may occur in newborns 72 hours after birth. This is jaundice caused by the peculiarities of bilirubin metabolism in newborns, which is a normal physiological phenomenon. Most newborns begin to show mild yellow staining of the skin, oral mucosa and white part of the eyes 2~3 days after birth, while the palms of the hands and feet are usually not yellow, and the yellow staining is heaviest on 4~6 days, and then gradually decreases. During this period, the child has no abnormalities other than jaundice, and if the blood is checked, the total serum bilirubin concentration does not exceed 205 micromol/l for term infants and 256 micromol/l for preterm infants, a phenomenon known as “physiological jaundice”. Temporary jaundice in newborns does not show any abnormalities and therefore does not require treatment, and can be treated by feeding glucose water. However, the progression and severity of temporary jaundice should be monitored, especially in premature infants. If neonatal jaundice appears too early, or if the jaundice is too severe, or if the jaundice lasts too long (jaundice lasting more than 4 weeks), or if the jaundice recurs, it may not be physiological jaundice and should be seen by a doctor. Care of neonatal jaundice (1) In most families where the moon is sitting, the room is dark and often has colored curtains, which makes it easy to overlook skin jaundice in newborns. The correct approach is to check the color of the child’s skin every day in natural light. If only the face is yellow, it is mild jaundice; if the trunk skin is yellow, it is moderate jaundice; if the extremities and the hearts of the hands and feet are also yellow, it is severe jaundice. (2) Observe the color of the newborn’s stool. If the stool becomes clay-colored, pathological jaundice should be considered, mostly due to congenital biliary malformations. If the jaundice is severe, accompanied by symptoms or stool color abnormalities, you should go to the hospital in time to avoid delaying treatment. (3) Expel fetal stool as soon as possible. Because fetal stool contains a lot of bilirubin, if the stool is not excreted, the bilirubin will be reabsorbed into the blood through the newborn’s special hepatic and intestinal circulation, causing jaundice to deepen. (4) Give the newborn sufficient water, too little urine is not conducive to the excretion of bilirubin. Parents can feed their newborns plain water every morning and evening so that they can urinate and excrete the jaundice from their bodies at the same time. If the newborn is drinking formula, he or she should be fed plain water between meals.