Why It Happens
Jaundice is a yellowing of the skin and eyes caused by a buildup of bilirubin, very common in the first week of life as a newborn’s liver matures.
What’s Typically Normal
Mild jaundice appearing after day 2–3 and improving by 1–2 weeks is common, especially in breastfed babies.
Clinicians often check bilirubin levels at routine newborn visits to track the trend.
When It Needs Attention
Jaundice appearing in the first 24 hours of life, spreading to the arms/legs, or a baby who is very sleepy or feeding poorly should be evaluated promptly.
High bilirubin levels are treatable, commonly with light therapy (phototherapy), under medical guidance.
Safety Note
This article is general guidance and not a diagnosis. Newborn jaundice should be tracked with your clinician’s scheduled checks.
FAQ
Does breastfeeding cause jaundice?
Feeding difficulties can contribute to it, but breastfeeding itself has clear benefits; a clinician can help optimize feeding.
How is jaundice measured?
A skin or blood test measures bilirubin levels, often combined with visual assessment.
Does jaundice go away on its own?
Mild cases often resolve on their own as feeding and elimination improve.
Is sunlight exposure a treatment?
Medical phototherapy under supervision is the standard treatment; discuss any home approach with your clinician first.