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Newborn jaundice

Also called: Newborn jaundice, baby jaundice, neonatal jaundice

Yellow skin and eyes in a newborn from extra bilirubin. It's very common in the first week and usually harmless, but high levels need treatment to protect the brain.

CommonAbout 6 in 10 newborns
PeaksDays 3 to 5
TreatmentFeeding, light therapy (phototherapy)

Overview

A newborn's liver is still learning to clear bilirubin.

Jaundice in the first 24 hours, very high levels, or jaundice past 2 weeks needs a check.

Symptoms

Common signs:

  • Yellow skin or eyes in a newborn

Less common

  • Sleepy baby
  • Poor feeding

Look up a symptom: Yellow skin or eyes

When to get medical care

Call 911A baby who is limp, very hard to wake, arches the back, or has a high-pitched cry.
Get care todayJaundice in the first 24 hours, spreading to the belly or legs, poor feeding, or fewer wet diapers.
See a doctor soonJaundice lasting more than 2 weeks, or pale stools or dark urine.

Causes

An immature liver, breastfeeding problems, and blood type differences.

Does it spread or run in families?

  • It isn't contagious. You can't catch it from someone else.

Who is more likely to get it

  • Premature babies
  • Breastfeeding trouble
  • Bruising at birth

Possible complications

Diagnosis

Your baby's care team checks bilirubin.

Questions you may be asked

  • Feeding, wet diapers, stool color

The exam

Looking at skin and eyes.

Tests

Tests, if needed:

  • Skin or blood bilirubin test:

Treatment

Frequent feeding helps clear it.

Self-care

  • Feed 8 to 12 times a day
  • Count wet and dirty diapers
  • Keep follow-up visits in the first days home

Phototherapy (blue light) lowers high levels safely.

Prevention

To lower risk:

  • Feed often in the first days

Which doctor treats this

  • Start with your child's pediatrician.

For caregivers

  • Learn the warning signs and when to call the doctor or 911.
  • Keep a list of your child's medicines, doses, and doctors on your phone.
  • Tell teachers, coaches, and sitters what to watch for and what to do.
  • Take breaks and ask for help. Caregivers need care too.

Outlook

Almost always clears without problems.

Getting ready for your visit

Bring a list of your symptoms and medicines.

What to bring

  • Feeding and diaper log

Questions to ask

  • Does my baby need light therapy?

Research studies

Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.

Search ClinicalTrials.gov for studies on Newborn jaundice

Sources

Last updated 2026-11-12.