Types of jaundice

There are several types of jaundice, categorized based on the underlying cause of bilirubin buildup. 1. Physiologic Jaundice: This is the most common type, occurring in about 60% of full-term newborns and 80% of premature infants. It typically appears 2-4 days after birth and resolves on its own within 1-2 weeks. It's due to the newborn's immature liver function and increased red blood cell breakdown. 2. Breastfeeding Jaundice: This type occurs in the first week of life and is associated with inadequate milk intake. Insufficient feeding leads to less bilirubin being excreted in the stool, causing levels to rise. 3. Breast Milk Jaundice: This is different from breastfeeding jaundice and usually appears after the first week of life, peaking around the second or third week. It's thought to be caused by substances in the mother's breast milk that interfere with the baby's liver's ability to process bilirubin. It typically resolves on its own without intervention. 4. Hemolytic Jaundice: This occurs when there is an excessive rate of red blood cell destruction (hemolysis). Causes include Rh incompatibility, ABO incompatibility, and certain inherited red blood cell disorders like hereditary spherocytosis. This type of jaundice often requires prompt treatment, such as phototherapy or exchange transfusion. 5. Obstructive Jaundice: This is less common in newborns and results from a blockage in the bile ducts, preventing bile (which contains bilirubin) from reaching the intestines. Conditions like biliary atresia can cause this. It requires surgical intervention. 6. Pathologic Jaundice: This refers to jaundice that appears within the first 24 hours of life, is severe (high bilirubin levels), or persists beyond 1-2 weeks. It indicates an underlying medical problem, such as infection, metabolic disorders, or hemolytic disease.