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Neonatal Jaundice in Premature Babies – Everything You Need To Know

If you’re a new parent, then you’re probably already familiar with the many challenges that come with caring for a premature baby in the NICU (Neonatal Intensive Care Unit). Neonatal jaundice is one of those challenges. When you see your baby’s skin turn yellow, it’s alarming!

At least for my husband, Dave, and I, that’s how we felt. Both our identical twin girls, Lua and Lily Mae, were preemie babies born at 27 weeks and BOTH had neonatal jaundice. While it’s common and usually harmless, it can be a bit confusing and even overwhelming to deal with.

  • What causes it?
  • How is it treated?
  • How long does it last?

We will cover these commonly asked questions and more. So let’s get to it. Here’s everything you need to know about neonatal jaundice.

What is Neonatal Jaundice?


Neonatal jaundice occurs when an infant’s skin and the whites of the eyes turn yellow within the first few days of life. This happens because of an increased blood pigment called bilirubin, which settles in the skin. In most cases, neonatal jaundice is a normal process that occurs in about 3 in 5 babies (60 percent).

Bilirubin is a pigment that is produced when red blood cells break down.

In premature babies, the liver is not yet fully developed and cannot process bilirubin as efficiently as an adult liver can. As a result, bilirubin builds up in the blood and settles in the skin, causing a yellowish appearance.

In most cases, it’s harmless and will resolve by exposing the baby to special lights (phototherapy or bili lights). For full-term newborns, jaundice typically resolves on its own within the first couple of weeks of life with no treatment needed.

Bili Lights


In the NICU, neonatal jaundice typically requires medical intervention by exposing the preemie to special lights to help break down bilirubin in the blood. It’s a blue light that shines on the baby’s skin. This special light reduces elevated levels of bilirubin which passes through the urine or stool.

Both our twin girls had bili lights placed on them.

We called it “getting their tan on”. 🙂

We were told by our nurses and doctors this is very common among preemies in the NICU and most may need bili lights at some point.

Typically, a baby is placed under this light for 1 to 2 days. Lua and Lily Mae had bili lights off and on for the first several weeks of life after they were born prematurely.

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Symptoms of Neonatal Jaundice


The most obvious symptom of neonatal jaundice is the yellowing of the skin and the whites of the eyes. Oftentimes, neonatal jaundice is first seen on the face, then on other parts of the body such as the chest and legs. In some cases, urine may appear dark brown or tea-colored due to high bilirubin levels in the bloodstream.

If you have a preemie versus a full-term newborn the symptoms may look different.

For A Preemie

A blood test is usually done to determine the amount of bilirubin in the blood. If the levels are high, bili lights will be placed on the infant to lower bilirubin levels.

For A Full-Term Newborn

The primary symptom is usually the yellowing of the skin, but other symptoms may include:

  • A weak cry
  • Difficulty feeding
  • Excessive sleepiness
  • Irritability

However, if your baby seems unusually sleepy or uninterested in feeding, this could be a sign that bilirubin levels are high and you should seek medical attention immediately.
Untreated severe jaundice can lead to seizures, brain damage, or even death. Thankfully, this is very rare with early detection and treatment.

Don’t hesitate to contact your pediatrician if you suspect your infant to have jaundice so they can perform a physical examination and order any necessary tests such as a CBC (complete blood count) or a bilirubin level test.

Causes of Neonatal Jaundice


Several things that may cause neonatal jaundice could include:

Immature Liver Function

This is the most common cause of neonatal jaundice and usually happens when a premature infant’s liver is not yet fully developed and unable to process Bilirubin effectively.

This was the reason why our twin girls developed neonatal jaundice.

After they were born at 27 weeks, each of our girls was treated. They needed their bili lights off and on up until they were about 32 weeks. Why? After treatment for 1 to 2 days, their bilirubin levels would be good. Then, due to the prematurity of their liver function, their levels would go high again.

Do not be alarmed if your preemie is treated for neonatal jaundice off and on in the NICU. Especially if they were born early. It is common and usually treatable without any worry.

neonatal-jaundice

Excessive Red Blood Cell Breakdown

This can happen when an infant has a condition known as hemolytic disease, which causes their red blood cells to break down at a faster rate than normal.

Breast Milk Jaundice

In some cases, neonatal jaundice may be caused by a reaction to certain compounds in breast milk. This usually goes away on its own after a few weeks.

Blood Type Incompatibility Between The Mother and Child

For instance, if the mom has a type O blood type and the child has a type A or B blood, this can increase the chances of neonatal jaundice or if the mother has an Rh (Rhesus) factor negative blood type and the newborn is Rh factor positive.

Treatment For Neonatal Jaundice


In most cases, treatment for neonatal jaundice in newborns is not necessary as it will go away on its own within 2-3 weeks. However, if bilirubin levels become too high, your baby may need to be treated with phototherapy (light therapy aka “bili lights”) or exchange transfusions. These treatments help reduce bilirubin levels and should only be performed under the care of a medical professional.

To Wrap It Up


Most of the time, there’s no need to worry as neonatal jaundice is common and usually harmless in newborns.

So if your infant has jaundice, don’t panic! Most of the time it will clear up on its own within a few weeks with full-term newborns and with premature infants in the NICU, neonatal jaundice is usually very treatable and closely watched.

If you’re concerned about your baby’s jaundice or it doesn’t seem to be improving, be sure to talk to your pediatrician or NICU medical team. They will be able to advise you on whether there’s cause for concern or if the treatment might be necessary.

Until the next post, I’m sending you all the positive parent vibes!

xo

Lindsey

Thank You


Thank you for being here today!

Do you have anything to add or tips to share about neonatal jaundice? Let us know in the comments below. 🙂

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About The Author


Lindsey is a mom of two little miracles, MoMo twin girls, Lily Mae and Lua, plus one amazing older bro, Cody.

“Consider me a ‘blog super nerd’ at heart.  I love helping busy parents learn how to blog because it has personally been life-changing for me and my family.  Plus, sharing my experience to help otheron their twinhood journey is so rewarding!”

She is the founder of Twin Mom Blog Nerd, Content Creator/Co-Founder of the blog Intensive Therapy for Kids, and Co-Founder of The LENN Foundation 501(c)(3) charity that helps children with cerebral palsy (like her sweet nephew, Lenny) receive grants for intensive therapies to thrive. ♥

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