My child is over 2 weeks old and his skin is still yellow, should it matter and what do I need to do about it? This delayed remission of jaundice is actually quite common in newborns, and one of the major causes of this is breast milk jaundice. Jaundice appears in breastfed infants 4 to 7 days after birth and peaks in 2 to 4 weeks (serum bilirubin can exceed 256.6 to 342.0 μmol/L) (15 to 20 mg/dl), with elevated indirect bilirubin as the main cause, in good general condition, without hemolysis or anemia manifestations. Jaundice generally lasts 3 to 4 weeks, gradually subsiding in the second month, a few can be delayed until 10 weeks to recede. During jaundice, if breastfeeding is stopped for 3 to 4 days, jaundice is significantly reduced and bilirubin decreases by ≥50%, if breastfeeding is repeated, jaundice may not appear again, and even if it appears, it will not reach the original degree. With the increase in breastfeeding rate, the incidence of breast milk jaundice has been increasing year by year and has now reached 20%-30%. It has also become one of the main causes of neonatal hyperbilirubinemia in hospitalized infants. Although the prognosis of this disease is good and treatment is required only in severe cases, attention should be paid to the successful promotion of breastfeeding. So what to do if your child is diagnosed with breast milk jaundice? A large proportion of parents are anxious as they watch their child stay yellow without any signs of remission, and many parents consult the treatment in the clinic, whether to stop breast milk or to take blue light is a more common question. In fact, this point has been clearly stipulated in the 2014 Expert Consensus on the Diagnosis and Treatment of Neonatal Hyperbilirubinemia: “When the bilirubin is <257umol/L (transdermal bilirubin 15mg/dl), it is not necessary to stop breastfeeding, but when it is >257umol/L (15mg/dl), breastfeeding can be suspended for 3 days and changed to artificial feeding. Phototherapy is added for bilirubin >342umol/L (20mg/dl).” In addition, many parents encounter situations where the community health center refuses to vaccinate their child because of jaundice, which is actually stated in the guidelines: “Infants with breast milk jaundice who are generally well and have no other complications are not affected by routine vaccination.” Therefore, if a child is diagnosed by a doctor with breast milk jaundice, most of them do not need to worry too much and do not need to stop breast milk routinely; if the jaundice is really heavy, breast milk can be suspended, and in clinical cases where breast milk jaundice is really encountered and needs to be treated with blue light irradiation, it is still a minority. Parents need to overcome the anxiety, as long as the child eat, sleep, weight growth are normal, do not worry too much, usually 2-3 months will naturally subside.