Newborn jaundice how high need to take blue light, need to be combined with the newborn’s gestational age and other comprehensive analysis, decided by a professional doctor, rather than only through the jaundice value analysis, specific analysis is as follows: 1. Preterm babies: If the newborn is born prematurely, i.e. before 35 weeks, and if the jaundice value reaches 8mg/dL according to the measuring instrument, the newborn needs to cooperate with the doctor to take the blue light treatment actively. 2. Full-term babies: If the newborn is born at full term, i.e. at 38 weeks, the jaundice value needs to reach 21mg/dL before blue light treatment. Newborn jaundice, it is recommended to consult a doctor in a timely manner, by the doctor to determine whether the need for blue light treatment. Jaundice value is only one of the reference indicators.