Pediatric jaundice is divided into physiological jaundice and pathological jaundice, physiological jaundice usually subsides in 5~7 days, and pathological jaundice usually subsides after two weeks. Some babies may take about 2 months for jaundice to subside, depending on the individual. Pediatric jaundice, also known as hyperbilirubinemia, is common in full-term and preterm babies. Physiological jaundice in newborns and full-term babies usually appears in 2~3 days, and subsides in 5~7 days, not exceeding 2 weeks at the longest; physiological jaundice in preterm babies appears in 3~5 days, and subsides in no more than 4 weeks at the longest. The above two kinds of babies, jaundice lasts 2 weeks or 4 weeks does not subside is pathological jaundice. Pediatric jaundice subside time should also be related to individual physique, physiological jaundice subside earlier than pathological jaundice, pathological jaundice need timely treatment, identify the cause of the disease, and pay attention to the daily observation of the child’s skin, sclera, urination and defecation, and mental status.