Medical Conditions

Prolonged Jaundice (Lasting Over 2 Weeks)

Medically reviewed by Dr. Michael Okonkwo, MD, FAAP · Board-Certified Neonatologist

Content reviewed against published AAP, NICE guidelines

Editorial policy

Last reviewed:

If your baby has been diagnosed with or you suspect prolonged jaundice (lasting over 2 weeks), here is what the evidence says.

The short answer

Jaundice lasting longer than 2 weeks in a full-term baby or 3 weeks in a premature baby is considered prolonged and should be evaluated. While the most common cause is breast milk jaundice (harmless), prolonged jaundice can occasionally indicate liver or thyroid problems that need prompt treatment. A simple blood test can help determine the cause.

Key takeaways

  • Jaundice lasting longer than 2 weeks in a full-term baby or 3 weeks in a premature baby is considered prolonged and should be evaluated. While the most common cause is breast milk jaundice (harmless), prolonged jaundice can occasionally indicate liver or thyroid problems that need prompt treatment. A simple blood test can help determine the cause.
  • Usually normal when: Breast milk jaundice with normal conjugated bilirubin in an otherwise thriving, breastfed baby
  • Call your doctor if: Pale, white, or clay-colored stools in a jaundiced baby, which could indicate biliary atresia requiring urgent surgical evaluation
  • Varies by age — see the age-by-age breakdown below
“Fever itself is not an illness — rather, it is a sign or symptom that the body is fighting an infection. Fever stimulates certain defenses, such as the white blood cells, which attack and destroy invading bacteria.”
— Fever and Your Child, American Academy of Pediatrics (AAP)

Parents everywhere have the same worry. You are doing the right thing by looking into it.

What Parents Should Know

According to AAP, NICE guidelines, jaundice lasting longer than 2 weeks in a full-term baby or 3 weeks in a premature baby is considered prolonged and should be evaluated. While the most common cause is breast milk jaundice (harmless), prolonged jaundice can occasionally indicate liver or thyroid problems that need prompt treatment. A simple blood test can help determine the cause. At 0-1 month, most newborn jaundice peaks around days 3-5 and resolves by 2 weeks. If your baby is still noticeably yellow after 2 weeks, your pediatrician should check a bilirubin level and differentiate between conjugated (direct) and unconjugated (indirect) bilirubin. Elevated unconjugated bilirubin is most often caused by breast milk jaundice, which is harmless and resolves on its own by 3 months while you continue breastfeeding. Elevated conjugated bilirubin is more concerning and could indicate biliary atresia, hepatitis, or other liver conditions requiring prompt evaluation and treatment. Your pediatrician should also check thyroid function and evaluate for other potential causes. It is generally considered normal when breast milk jaundice with normal conjugated bilirubin in an otherwise thriving, breastfed baby. However, you should contact your pediatrician promptly if pale, white, or clay-colored stools in a jaundiced baby, which could indicate biliary atresia requiring urgent surgical evaluation.

Sources: [1], [2]

Normal vs. Concerning

Usually Normal
Worth Discussing
Breast milk jaundice with normal conjugated bilirubin in an otherwise thriving, breastfed baby
Pale, white, or clay-colored stools in a jaundiced baby, which could indicate biliary atresia requiring urgent surgical evaluation
Gradual fading of yellow color while baby feeds well and gains weight
Dark tea-colored urine, an enlarged or firm abdomen, or a baby who is increasingly lethargic and feeding poorly
Normal colored stools (yellow or green) and pale yellow urine
Your baby is still visibly jaundiced after 2 weeks of age
Baby is alert, active, and developing normally
You want to confirm whether the jaundice is breast milk jaundice or something else

By Age

What to expect by age

0-1 month

Most newborn jaundice peaks around days 3-5 and resolves by 2 weeks. If your baby is still noticeably yellow after 2 weeks, your pediatrician should check a bilirubin level and differentiate between conjugated (direct) and unconjugated (indirect) bilirubin. Elevated unconjugated bilirubin is most often caused by breast milk jaundice, which is harmless and resolves on its own by 3 months while you continue breastfeeding. Elevated conjugated bilirubin is more concerning and could indicate biliary atresia, hepatitis, or other liver conditions requiring prompt evaluation and treatment. Your pediatrician should also check thyroid function and evaluate for other potential causes.

1-3 months

Breast milk jaundice may persist during this period and gradually resolves. If conjugated bilirubin was elevated, your baby may be undergoing evaluation and treatment for liver conditions. Biliary atresia, in particular, requires surgical intervention (Kasai procedure) ideally before 60 days of age for the best outcomes. Watch for pale or white stools and dark urine, which are warning signs of a liver problem.

3-6 months

Breast milk jaundice should be fully resolved by this age. If jaundice persists, further investigation is needed. Any baby with persistent jaundice should have liver function tests and evaluation for metabolic or genetic conditions.

6-12 months

Jaundice should not persist at this age. Any persistent yellowing should be thoroughly evaluated.

What to Tell Your Pediatrician

  • Describe when you first noticed prolonged jaundice (lasting over 2 weeks) and how it has changed over time.
  • Note your baby's current age and which age-specific patterns you are seeing.
  • Mention if your baby is still visibly jaundiced after 2 weeks of age.
  • Mention if you want to confirm whether the jaundice is breast milk jaundice or something else.
  • Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
  • Bring a list of any questions or observations you want to discuss at the appointment.

What Should You Do?

When to take action

Probably normal when...
  • Breast milk jaundice with normal conjugated bilirubin in an otherwise thriving, breastfed baby
  • Gradual fading of yellow color while baby feeds well and gains weight
  • Normal colored stools (yellow or green) and pale yellow urine
  • Baby is alert, active, and developing normally
Mention at your next visit when...
  • Your baby is still visibly jaundiced after 2 weeks of age
  • You want to confirm whether the jaundice is breast milk jaundice or something else
  • Your baby's jaundice seemed to resolve but has returned
Act now when...
  • Pale, white, or clay-colored stools in a jaundiced baby, which could indicate biliary atresia requiring urgent surgical evaluation
  • Dark tea-colored urine, an enlarged or firm abdomen, or a baby who is increasingly lethargic and feeding poorly

What You Can Do at Home

  • Keep track of when you notice prolonged jaundice (lasting over 2 weeks) — noting the time of day, duration, and any triggers can help your pediatrician.
  • Remember that breast milk jaundice with normal conjugated bilirubin in an otherwise thriving, breastfed baby — this is generally within the range of normal.
  • At 0-1 month, focus on observation rather than intervention unless your pediatrician advises otherwise.
  • Follow any care instructions from your pediatrician. Keep a written log of symptoms to bring to appointments.
  • While monitoring at home, seek immediate care if pale, white, or clay-colored stools in a jaundiced baby, which could indicate biliary atresia requiring urgent surgical evaluation.

Breast Milk Jaundice

Breast milk jaundice is a harmless condition where substances in breast milk slow the breakdown of bilirubin, keeping the baby mildly jaundiced for up to 2-3 months. It is different from breastfeeding jaundice (caused by insufficient milk intake in the early days). Breast milk jaundice requires no treatment, and you should continue breastfeeding.

Jaundice Light Treatment (Phototherapy)

Phototherapy (light treatment) is the standard treatment for newborn jaundice when bilirubin levels are too high. Special blue lights help break down bilirubin in the skin so the body can eliminate it. Phototherapy is very safe and effective. Your baby wears only a diaper and eye protection during treatment, which may be done in the hospital or at home with a bili blanket.

Baby White or Pale Poop

White, pale, chalky, or clay-colored stool in a baby is a MEDICAL EMERGENCY that requires immediate evaluation. Normal stool gets its color from bile, which is produced by the liver. White or very pale stools can indicate that bile is not reaching the intestines, which may be a sign of biliary atresia, a serious liver condition that requires urgent surgical treatment within the first weeks of life for the best outcomes.

Triage

Jaundice Decision Tree

Assess jaundice severity in newborns and when to call the doctor.

Milestone

Month-by-Month Development

Detailed monthly development guides from birth through 24 months.

Guide

When to Call the Doctor

General guide on when to call the pediatrician, visit urgent care, or go to the ER.

Frequently asked questions

Is prolonged jaundice (lasting over 2 weeks) normal?
Jaundice lasting longer than 2 weeks in a full-term baby or 3 weeks in a premature baby is considered prolonged and should be evaluated. While the most common cause is breast milk jaundice (harmless), prolonged jaundice can occasionally indicate liver or thyroid problems that need prompt treatment. A simple blood test can help determine the cause.
When should I call the doctor about prolonged jaundice (lasting over 2 weeks)?
Pale, white, or clay-colored stools in a jaundiced baby, which could indicate biliary atresia requiring urgent surgical evaluation Dark tea-colored urine, an enlarged or firm abdomen, or a baby who is increasingly lethargic and feeding poorly
When is prolonged jaundice (lasting over 2 weeks) normal?
Breast milk jaundice with normal conjugated bilirubin in an otherwise thriving, breastfed baby Gradual fading of yellow color while baby feeds well and gains weight Normal colored stools (yellow or green) and pale yellow urine
What causes prolonged jaundice (lasting over 2 weeks)?
Jaundice lasting longer than 2 weeks in a full-term baby or 3 weeks in a premature baby is considered prolonged and should be evaluated. While the most common cause is breast milk jaundice (harmless), prolonged jaundice can occasionally indicate liver or thyroid problems that need prompt treatment. A simple blood test can help determine the cause. Common explanations include: Breast milk jaundice with normal conjugated bilirubin in an otherwise thriving, breastfed baby. Gradual fading of yellow color while baby feeds well and gains weight.
What should I mention to my pediatrician about prolonged jaundice (lasting over 2 weeks)?
You should mention prolonged jaundice (lasting over 2 weeks) at your next visit if: Your baby is still visibly jaundiced after 2 weeks of age. You want to confirm whether the jaundice is breast milk jaundice or something else. Your baby's jaundice seemed to resolve but has returned.
Is prolonged jaundice (lasting over 2 weeks) normal at 0-1 month?
Most newborn jaundice peaks around days 3-5 and resolves by 2 weeks. If your baby is still noticeably yellow after 2 weeks, your pediatrician should check a bilirubin level and differentiate between conjugated (direct) and unconjugated (indirect) bilirubin. Elevated unconjugated bilirubin is most often caused by breast milk jaundice, which is harmless and resolves on its own by 3 months while you continue breastfeeding. Elevated conjugated bilirubin is more concerning and could indicate biliary atresia, hepatitis, or other liver conditions requiring prompt evaluation and treatment. Your pediatrician should also check thyroid function and evaluate for other potential causes.
Is prolonged jaundice (lasting over 2 weeks) normal at 1-3 months?
Breast milk jaundice may persist during this period and gradually resolves. If conjugated bilirubin was elevated, your baby may be undergoing evaluation and treatment for liver conditions. Biliary atresia, in particular, requires surgical intervention (Kasai procedure) ideally before 60 days of age for the best outcomes. Watch for pale or white stools and dark urine, which are warning signs of a liver problem.
Should I go to the ER for prolonged jaundice (lasting over 2 weeks)?
Seek emergency care if pale, white, or clay-colored stools in a jaundiced baby, which could indicate biliary atresia requiring urgent surgical evaluation, or if dark tea-colored urine, an enlarged or firm abdomen, or a baby who is increasingly lethargic and feeding poorly. When in doubt, call your pediatrician's after-hours line for guidance.
Does prolonged jaundice (lasting over 2 weeks) go away on its own?
In many cases, prolonged jaundice (lasting over 2 weeks) resolves on its own, especially when breast milk jaundice with normal conjugated bilirubin in an otherwise thriving, breastfed baby. By 6-12 months, jaundice should not persist at this age. Any persistent yellowing should be thoroughly evaluated.
AAPNICE

References

  1. [1]American Academy of Pediatrics. Management of Hyperbilirubinemia. Pediatrics. AAP
  2. [2]National Institute for Health and Care Excellence. Jaundice in Newborn Babies Under 28 Days. NICE Guideline CG98. NICE

Doctor Visit Checklist

Bring this checklist to your next pediatrician visit to discuss Prolonged Jaundice (Lasting Over 2 Weeks).

Things to mention

  • Describe when you first noticed prolonged jaundice (lasting over 2 weeks) and how it has changed over time.
  • Note your baby's current age and which age-specific patterns you are seeing.
  • Mention if your baby is still visibly jaundiced after 2 weeks of age.
  • Mention if you want to confirm whether the jaundice is breast milk jaundice or something else.
  • Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
  • Bring a list of any questions or observations you want to discuss at the appointment.

Observations to share

  • Your baby is still visibly jaundiced after 2 weeks of age
  • You want to confirm whether the jaundice is breast milk jaundice or something else
  • Your baby's jaundice seemed to resolve but has returned

Urgent signs to report immediately

  • Pale, white, or clay-colored stools in a jaundiced baby, which could indicate biliary atresia requiring urgent surgical evaluation
  • Dark tea-colored urine, an enlarged or firm abdomen, or a baby who is increasingly lethargic and feeding poorly

My notes

From ismybabyalright.com — free, evidence-based baby health guides

All content follows our editorial policy and is reviewed against published clinical guidelines.

2,705 evidence-based guides6 authoritative medical sources5 medical advisory board members

Related Resources

Jaundice TriageWell-Baby Visit PrepBaby Tracker

Bottom line

Most cases of prolonged jaundice (lasting over 2 weeks) are normal. Talk to your pediatrician if pale, white, or clay-colored stools in a jaundiced baby, which could indicate biliary atresia requiring urgent surgical evaluation.

Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.

Share:FacebookX

Was this page helpful?

Related Medical Concerns

Breast Milk Jaundice

Breast milk jaundice is a harmless condition where substances in breast milk slow the breakdown of bilirubin, keeping the baby mildly jaundiced for up to 2-3 months. It is different from breastfeeding jaundice (caused by insufficient milk intake in the early days). Breast milk jaundice requires no treatment, and you should continue breastfeeding.

Jaundice Light Treatment (Phototherapy)

Phototherapy (light treatment) is the standard treatment for newborn jaundice when bilirubin levels are too high. Special blue lights help break down bilirubin in the skin so the body can eliminate it. Phototherapy is very safe and effective. Your baby wears only a diaper and eye protection during treatment, which may be done in the hospital or at home with a bili blanket.

Baby White or Pale Poop

White, pale, chalky, or clay-colored stool in a baby is a MEDICAL EMERGENCY that requires immediate evaluation. Normal stool gets its color from bile, which is produced by the liver. White or very pale stools can indicate that bile is not reaching the intestines, which may be a sign of biliary atresia, a serious liver condition that requires urgent surgical treatment within the first weeks of life for the best outcomes.

My Baby's Head Shape Looks Abnormal

Many babies develop temporary head shape irregularities that are completely normal. A cone-shaped head from vaginal delivery reshapes within days. Mild positional flattening (plagiocephaly) from sleeping on the back is very common and usually improves with repositioning and tummy time. However, head shape changes involving ridges, a persistently bulging fontanelle, or rapid head growth changes should be evaluated to rule out craniosynostosis.

Achondroplasia (Dwarfism) in Babies

Achondroplasia is the most common form of short-limbed dwarfism, affecting about 1 in 15,000 to 40,000 births. It is caused by a mutation in the FGFR3 gene and is usually apparent at birth with characteristic features including short limbs, a larger head, and a prominent forehead. Intelligence is normal. With monitoring for specific complications and supportive care, children with achondroplasia lead full, active, and independent lives.

Adenoid Hypertrophy and Breathing

Adenoids are lymphoid tissue located behind the nose that help fight infection in young children. When adenoids become enlarged (adenoid hypertrophy), they can block the nasal airway, causing chronic mouth breathing, snoring, nasal speech, and sleep-disordered breathing. Enlarged adenoids are most common between ages 2-7 and are a leading cause of obstructive sleep apnea in young children. Treatment ranges from watchful waiting and nasal steroids to surgical removal (adenoidectomy) if breathing or sleep is significantly affected.