Is measuring bilirubin levels through the skin a reliable alternative to measuring bilirubin levels in the blood of newborns? Key messages The studies included in this review suggest that measuring bilirubin levels through the skin without a needle can identify high bilirubin levels in newborns. Why is it important to diagnose high bilirubin levels in newborns? Bilirubin is a substance produced through the breakdown of red blood cells. Jaundice is a very common problem in the newborn period and results from high levels of bilirubin in the blood (hyperbilirubinaemia). It is important to...