Neonatal jaundice is one of the most common phenomena in the neonatal period. It is divided into physiological jaundice and pathological jaundice. Due to the metabolic characteristics of bilirubin in newborns, about 50%-60% of full-term infants and 80% of preterm infants will experience physiological jaundice. The general condition of babies with physiological jaundice is good; the degree of jaundice is not severe, it does not progress rapidly, and then the jaundice gradually subsides on its own. At this time, no intervention treatment is needed, and it has no impact on the baby. If it is pathological jaundice, where the jaundice continues to rise, if not timely intervened, it might lead to serious complications such as bilirubin encephalopathy and cirrhosis, and may even lead to sudden cessation of respiration and heartbeat, posing a threat to life safety. Therefore, timely intervention and treatment are necessary for pathological jaundice, as jaundice might be the only manifestation of some serious diseases in newborns, such as rapid progression and severe jaundice, which are indications of the illness in the baby.