Newborns with jaundice 7 days after birth and a jaundice value of 15.1mg/dl serum bilirubin may be physiologic jaundice, and regular review is sufficient. However, pathologic jaundice cannot be ruled out, and targeted treatment can be taken according to the cause. Almost all newborns will have a temporary increase in bilirubin after birth because bilirubin production is greater than bilirubin excretion. If a newborn is 7 days old and the jaundice value of 15.1mg/dl has not yet exceeded the 95th percentile of the hourly bilirubin curve, it may be physiologic jaundice, and there is no need for special treatment for the time being, and regular rechecking of bilirubin is sufficient. If jaundice occurs within 24 hours of birth, and the daily rise of bilirubin is more than 5mg/ml or more than 0.5mg/ml per hour; and if jaundice recedes and reappears, and reaches 15.1mg/dl, it suggests that there is pathologic jaundice. It is recommended to consult a doctor in time to clarify the cause of jaundice and give targeted treatment. Newborn jaundice value of 15.1mg/dl 7 days after birth, it is recommended to consult a doctor in time, improve the relevant examination, clarify the cause of the disease, and provide symptomatic treatment.