Phototherapy: 5 Positive Facts About Treating Newborn Jaundice

Aslı Köse

Valdori Content Team

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Nearly 60% of newborns get jaundice, a condition with too much bilirubin in their blood. Phototherapy is a common treatment to lower bilirubin levels in newborns.

Neonatal jaundice can cause serious health problems if not treated. Phototherapy uses a specific light, usually blue light, to break down bilirubin in the skin.

The Natus neoBLUE Phototherapy system is one device used for this treatment. Knowing about phototherapy helps parents care for their newborns with jaundice better.

Explaining what is phototherapy for newborns, detailing how the light breaks down bilirubin in infants with phototherapy.

Key Takeaways

Phototherapy is a treatment for newborns with jaundice.
Nearly 60% of newborns develop jaundice.
Phototherapy involves exposure to blue light.
The treatment helps reduce bilirubin levels in the blood.
Untreated jaundice can lead to serious health complications.

Understanding Neonatal Jaundice

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neonatal jaundice

It’s important for new parents to understand neonatal jaundice to keep their baby healthy. This condition makes a baby’s skin and eyes turn yellow. It happens because of too much bilirubin in the blood.

What Causes Jaundice in Newborns

Jaundice in newborns is caused by an imbalance in bilirubin levels. Bilirubin is a yellow pigment from breaking down red blood cells. Newborns have more red blood cells, and their livers can’t handle all the bilirubin. This leads to a buildup.

Other reasons include:

Blood type incompatibility between mother and baby
Infections or inflammation
Liver or bile duct issues

Signs and Symptoms of Neonatal Jaundice

The main sign of neonatal jaundice is yellow skin and eyes. This starts on the face and spreads. Other symptoms are:

Drowsiness or difficulty waking up
Poor feeding
High-pitched crying

Parents should watch for these signs and see a doctor if they think their baby has jaundice. Early treatment can stop serious problems from high bilirubin levels.

The Fundamentals of Phototherapy Treatment

Light-based treatment is a common method for managing jaundice in newborns. It works by exposing the baby’s skin to a special type of light—most often blue light—which helps the body break down excess bilirubin.

What This Treatment Is and Why It’s Used

This type of therapy uses controlled light exposure to lower bilirubin levels in the bloodstream. The main purpose is to prevent bilirubin from building up to dangerous levels. With this approach, hospitals can help infants recover from jaundice without needing invasive procedures.

During treatment, bilirubin is changed into a form the infant’s body can remove more easily through urine. Lowering these levels reduces the risk of complications such as kernicterus, a serious condition caused by extremely high bilirubin.

When Light Treatment Becomes Necessary

Doctors recommend this approach when a newborn’s bilirubin levels rise above safe limits. The decision usually follows guidelines from the American Academy of Pediatrics (AAP).

Babies who are born early, have a lower birth weight, or struggle with other medical concerns may need this type of jaundice management sooner. Healthcare providers assess each infant individually before deciding on treatment.

How the Process Works

Special equipment—such as light panels, lamps, or overhead units—produces the wavelengths needed to help break down bilirubin. The light changes bilirubin molecules so the body can remove them more efficiently.

Although natural sunlight contains helpful wavelengths, medical devices provide a consistent and controlled source that is safer and more effective. Other types of light-based therapies, such as those used for skin conditions, demonstrate how versatile therapeutic light can be.

Understanding how this treatment works helps medical professionals choose the right approach for each baby, ensuring safe bilirubin reduction and supporting healthy development.