Newborn jaundice Causes
It is normal for a baby's bilirubin level to be a bit high after birth.
When the baby is growing in the mother's womb, the placenta removes bilirubin from the baby's body. The placenta is the organ that grows during pregnancy to feed the baby. After birth, the baby's liver starts doing this job. It may take some time for the baby's liver to be able to do this efficiently.
Most newborns have some yellowing of the skin, or jaundice. This is called physiological jaundice. It is often most noticeable when
the baby is 2 to 4 days old. Most of the time, it does not cause problems and goes away within 2 weeks.
Two types of jaundice may occur in newborns who are breastfed. Both types are usually harmless.
Breastfeeding jaundice is seen in breastfed babies during the first week of life. It is more likely to occur when babies do not nurse well or the mother's milk is slow to come in.
Breast milk jaundice may appear in some healthy, breastfed babies after day 7 of life. It is likely to peak during weeks 2 and 3, but may last at low levels for a month or more. The problem may be due to how substances in the breast milk affect the breakdown of bilirubin in the liver. Breast milk jaundice is different than breastfeeding jaundice