Breast milk jaundice, also known as breastfed jaundice, is a condition that affects newborn babies who are breastfed. It is characterized by a yellowish discoloration of the skin and eyes, known as jaundice, which is caused by a buildup of a yellow pigment called bilirubin in the blood. While jaundice is a common condition in newborns, breast milk jaundice is a specific type of jaundice that is associated with breastfeeding.