Newborn Jaundice
Why is my baby yellow and what does it mean?
When your baby's skin and the whites of their eyes turn yellow, it's called jaundice. This happens when something called bilirubin, which is made by the body, builds up too much. Normally, the body gets rid of bilirubin through urine and feces. There are a few reasons why bilirubin might get too high in newborns. Three common reasons are called physiologic jaundice, breast milk jaundice, and breastfeeding jaundice.
Physiologic Jaundice
- This type of jaundice happens because the baby's liver isn't fully developed yet, and their red blood cells don't live as long.
- It usually starts a little over a day after birth.
- The baby's liver isn't mature enough to handle all the bilirubin and the red blood cells break down quickly.
- Most of the time, nothing needs to be done. But if bilirubin levels are high, the baby might need phototherapy, a special light treatment.
- It usually goes away on its own in 1-2 weeks.
Breast Milk Jaundice
- This happens because of certain naturally occurring substances in breast milk can cause the bilirubin to stay in the baby's body.
- It usually starts within 2 weeks after birth.
- A normal enzyme in breast milk, beta glucuronidase, makes it harder for the baby to get rid of the bilirubin.
- Keep breastfeeding and make sure the baby is getting enough milk. Sometimes adding formula can help.
- It can last 4-13 weeks but will get better as breastfeeding continues.
Breastfeeding Jaundice
- This happens when the baby isn't getting enough milk which can cause them to get dehydrated and have fewer poops, making it harder for them to get rid of bilirubin.
- It usually starts within 1 week after birth.
- Not enough milk intake leads to fewer bowel movements so less bilirubin is removed from the body.
- Increase how often you breastfeed; make sure the baby is staying hydrated and add formula if needed.
- It will go away as soon as the baby starts eating enough.
Important Things to Know
The first place that will turn yellow is the whites of the eyes then it moves to the head and finally to the arms and legs. When the jaundice starts to go away, it will get better in the opposite order, with the eyes getting better last. As previously stated, there are many causes of increased bilirubin. jaundice can be a medical emergency. If your baby is yellow and acting sick, lethargic or fussy go to the emergency room. Otherwise call our office for guidance.
Ransome Drexler MS3 University of Missouri School of Medicine Springfield Campus








