Newborn Jaundice: Observation and Care
A newborn who looks yellow needs a bilirubin assessment; skin color alone cannot show whether treatment is needed. Jaundice in the first 24 hours needs urgent assessment. Keep the planned recheck and feeding plan, and do not use sunlight as treatment.
At a glance
Look in bright neutral light, including the eyes and gums, but treat appearance as a reason to measure rather than a measurement itself. Bilirubin results are interpreted against the baby’s age in hours and clinical risk. Jaundice noticed in the first 24 hours needs urgent assessment. Keep the agreed feeding plan, track feeds, wet diapers, stools, and wakefulness, and attend the scheduled recheck. Phototherapy uses controlled medical light; sunlight is not a safe substitute. Poor feeding, hard waking, unusual tone or cry, dark urine, pale stools, fever, or worsening yellow color needs prompt care.
What bilirubin is and why newborns become yellow
Bilirubin is the yellow pigment produced when red blood cells break down. Newborns produce relatively more of it while the liver is still becoming efficient at clearing it. Jaundice is common, but its timing and measured level determine what care is needed.
Why looking is useful but never enough
Look at the skin, whites of the eyes and gums in bright, preferably natural light. Skin tone, lighting and cameras can change how yellow the baby appears. Use a change in appearance to contact a clinician, not to estimate a bilirubin number or cancel a test.
Also notice feeding, waking, wet diapers and stools. Significant jaundice may be present before the color looks dramatic.
A bilirubin number needs the baby’s age in hours
A bilirubin result needs its units and the baby’s age in hours at the test. Clinicians also consider gestational age, feeding and clinical risk when deciding treatment and follow-up.
A skin device can screen for bilirubin; a blood test may be needed for confirmation or treatment decisions. Ask for the result, test time and next appointment.
Jaundice in the first 24 hours changes urgency
Jaundice in the first 24 hours needs urgent bilirubin measurement and medical evaluation. Contact the birth service or pediatric team rather than waiting for a routine visit.
Prematurity, significant bruising, a sibling who needed phototherapy, blood-group or antibody concerns, G6PD deficiency, illness and feeding difficulty can affect monitoring. Tell the team about known risks.
Feeding and jaundice influence each other
Inadequate early milk intake can reduce stooling and increase bilirubin reabsorption. A sleepy jaundiced baby may then feed less effectively. Seek help with feeding, weight and hydration rather than stopping breastfeeding on your own.
Most jaundiced newborns can keep breastfeeding with an individual plan. Do not dilute or concentrate formula, add unprescribed ingredients or give water to lower bilirubin. Discuss any supplementation with the care team.
Outputs and weight make feeding observations more useful
Keep a short record of feeds, swallowing or fatigue, wet diapers, stools and how easily the baby wakes. Bring birth, discharge and later weights, noting where they were measured.
Poor feeding, hard waking or fewer outputs than your baby’s agreed plan needs prompt contact; do not wait for the next weigh-in.
Discharge follow-up is part of care, not an optional extra
Before discharge, confirm the bilirubin result and units, the baby’s age at measurement, and the place and time of any recheck. Ask whom to contact if the baby worsens or you cannot attend.
Bilirubin can rise after discharge. Photographs and phone apps cannot replace the scheduled test.
Phototherapy is controlled medical treatment
Phototherapy uses controlled medical light to help the body clear bilirubin. The clinical team manages the device, eye protection, temperature, feeding and repeat tests.
Sunlight is not a safe substitute: its dose is unpredictable and it adds ultraviolet and temperature risks. Use prescribed treatment and ask how feeds, breaks and follow-up will work.
Prolonged jaundice and stool or urine color
Report jaundice that lasts longer than expected, pale or chalky gray-white stools, or persistently dark urine that stains the diaper. Do not wait for the baby to look very ill.
These changes can need tests for liver or bile-flow problems. A photograph in neutral light can help describe the color, but it must not delay care.
Changes that should not wait for a routine recheck
Seek prompt assessment for first-day jaundice, rapidly worsening yellow color, poor feeding, repeated vomiting, fewer outputs, fever or low temperature, or increasing sleepiness.
Seek emergency help if the baby is very hard to wake, unusually stiff or floppy, has an unusual high-pitched cry, breathing difficulty, seizure, collapse or blue-gray color. Bring the discharge record and bilirubin result; do not delay for sunlight or repeated photographs.
Frequently asked questions
Can I estimate bilirubin from a photo?
No. A photo can document change but cannot replace a transcutaneous or blood measurement interpreted by age in hours.
Should breastfeeding stop?
Usually not. Continue the individualized feeding plan and obtain early help with transfer, intake, weight, and any indicated supplementation.
Can sunlight treat jaundice?
No. Sunlight is unpredictable and adds ultraviolet and temperature risks. Use prescribed medical phototherapy when treatment is indicated.
Why is a recheck needed after discharge?
Bilirubin can continue rising after discharge. Timing depends on the measured value, age in hours, gestational age, feeding, and risk factors.
Which stool color needs prompt advice?
Pale, chalky, gray, or white stools need prompt clinical review, especially with prolonged jaundice or dark urine.