By Dr. Jamie Hutton
Why is my baby yellow? How do I make it go away? Is it going to hurt my baby? These are all common questions for new parents. Almost all newborns are jaundiced to some degree.
Jaundice is the buildup of bilirubin in the baby’s blood. Bilirubin comes from the breakdown of the baby’s red blood cells, which is normal after delivery. The newborn liver is immature and cannot excrete the bilirubin as fast as it is produced. The bilirubin causes a yellow discoloration of the skin and eyes.
When the baby is in the hospital after birth, they will be checked every 12–24 hours for jaundice, often by visual inspection or by measurement through the skin. If levels are high, blood will be drawn to check the exact level of bilirubin. The American Academy of Pediatrics has levels that are deemed low risk or high risk.
The biggest concern about high bilirubin levels is that they can be toxic to the brain and cause kernicterus, lasting brain damage that can cause uncontrolled movements, an upward gaze, and hearing loss. The good news is that jaundice can be treated and kernicterus can be prevented.
The best treatment is feeding. The more the baby eats, the more bowel movements they produce, which is how bilirubin is excreted. If levels become too high, the baby will be admitted to the hospital for light therapy. Light therapy uses special lamps that emit a blue-green spectrum, which changes the structure of the bilirubin and allows it to be excreted in the urine and stool.
In summary, jaundice is a yellowing of the baby’s skin that, at high enough levels, can cause brain damage. The level peaks at 3–5 days of life. Your pediatrician will look closely at your baby during the hospital follow-up visit and determine the degree of jaundice and whether levels need to be checked.
Quick takeaways
- Jaundice is a yellow discoloration of the skin and eyes from bilirubin in the blood, very common in newborns.
- Levels typically peak at 3–5 days of life.
- The best treatment is frequent feeding; severe cases may need light therapy in the hospital.
- Untreated high bilirubin can cause kernicterus (brain damage), which is why follow-up is so important.
Don’t skip the hospital follow-up
It is very important to keep your hospital follow-up appointment with your pediatrician, this is when we check the level of jaundice and decide if any further testing or treatment is needed.