Neonatal jaundice includes physiological jaundice and pathological jaundice, and pediatric jaundice index, which refers specifically to the serum bilirubin value, is generally within the normal range if it does not exceed 15 mg/dL, and once it exceeds this range, it is pathological jaundice. Physiological jaundice is mainly due to the concentration of red blood cells in infants than in adults, the immature development of the body organs, especially the liver, bilirubin metabolism in the body is not easy to metabolize and discharge caused, usually in newborns two days after birth, lasting about a week to about half a month, but the serum bilirubin value generally does not exceed 15mg/dL, generally do not need special treatment, can subside and improve. Pathological jaundice is mainly due to hemolytic disease, biliary system disease, hepatitis, liver insufficiency and other causes of liver disease, and generally requires hospitalization. In addition, elevated serum unconjugated bilirubin can enter the brain through the blood-brain barrier and lead to bilirubin encephalopathy, which requires hospitalization for bilirubin measurement, routine blood tests, and parental blood type tests. Treatment of pathological jaundice is generally based on light such as blue light, blood exchange, medication and symptomatic support. Therefore, different measures should be taken for jaundice of different etiologies, and symptomatic treatment is required.