Jaundice value decreased from 11mg/dl to 9mg/dl after 3 days of breast milk stoppage, mainly considering breast milk jaundice, it is recommended to consult a professional doctor for appropriate treatment. Common causes 1, breastfeeding: breast milk contains glucuronidase, which can catalyze conjugated bilirubin into unconjugated bilirubin, causing jaundice. Therefore, if jaundice occurs with breastfeeding, the jaundice value decreases after stopping breast milk; 2. Metabolic abnormalities: the dissociation process of conjugated bilirubin is usually carried out in the small intestine of newborns, which leads to slower excretion of conjugated bilirubin and increased unconjugated bilirubin due to slower intestinal peristalsis, which can lead to breast milk jaundice. Treatment is generally a small number of meals feeding, bilirubin level exceeds the physiological range (15mg/dl), breastfeeding can be suspended for 2-3 days for observation, if it continues to decline, then continue breastfeeding; if suspended feeding jaundice still continues to rise or appears to refuse milk, drowsiness, hospitalization is recommended. Caution usually pay attention to keep warm, avoid wrongly feeding sugar water, prevent infection or other diseases to avoid aggravating the jaundice. If breastfeeding is stopped for a period of time and the jaundice symptoms do not ease, prompt medical treatment is recommended.