The most common causes of neonatal jaundice include:

• Abnormally slow breakdown of bilirubin by the liver
• Poor feeding in infants who are breast-fed

The most common causes of neonatal jaundice resolve without treatment.

Rare causes of neonatal jaundice include:

• Biliary atresia
• Infections
• Hemolytic anemia
• Erythroblastosis fetalis
• Exposure to mother's blood during delivery