How to Use the Newborn Jaundice Risk Checker
Newborn jaundice is common enough that more than half of newborns experience some degree of it, but depending on when it starts and how far it spreads, it can range from harmless physiologic jaundice to a condition needing urgent treatment. This checker uses 6 questions — onset timing, prematurity, how far the yellow color has spread (based on the classic head-to-toe progression), feeding, alertness, and weight loss — to calculate a risk score that helps you gauge whether a doctor visit is warranted.
In particular, jaundice appearing within the first 24 hours, yellowing that reaches the legs and soles of the feet, or a baby who is very lethargic and unresponsive can be warning signs that call for immediate medical attention regardless of the total score. Jaundice that starts on day 2-3 and stays limited to the face or chest is more often common physiologic jaundice.
This result is a reference risk check only — an actual diagnosis requires a bilirubin blood test evaluated by a pediatrician, and this tool does not replace medical diagnosis. If you have any concerns at all, don't hesitate to see a pediatrician or visit the ER regardless of your score.
Frequently Asked Questions
Jaundice appearing within the first 24 hours is usually not typical physiologic jaundice and may signal a hemolytic or other underlying condition, requiring prompt pediatric evaluation. Jaundice starting on day 2-3 is more often common physiologic jaundice.
If your score is high, or your baby is lethargic, feeding poorly, or jaundiced down to the legs and feet, seek medical care (including the ER if needed) right away for a bilirubin test. Don't wait if pediatric care isn't immediately available.
Breastfed babies can have slightly more common and longer-lasting jaundice than formula-fed babies. However, if low milk intake leads to significant weight loss, risk increases — so frequent feeding and weight checks matter.