Breastfeeding jaundice requires the following conditions: 1) exclusive breastfeeding or predominantly breastfeeding, and the baby has a good weight gain. 2) Normal alanine aminotransferase in liver function tests, and although the total bilirubin is increased, the proportion of direct bilirubin does not exceed 20% of the total bilirubin. 3) Infectious indicators are not high in the routine blood tests and CRP tests. 4) Exclude the possibility of hemolysis. 5) Response to the test of stopping breastfeeding, that is, checking bilirubin before and 48-72 hours after stopping breastfeeding. The bilirubin is checked before and 48-72 hours after stopping breastfeeding, and the bilirubin decreases significantly compared with before. If the above conditions are met, breastfeeding jaundice is considered, and breastfeeding can be continued, and the jaundice will disappear in about two months.