Total bilirubin 14.8mg/dl on the third day of jaundice does not need blue light for the time being, if the jaundice does not subside for a long time, blue light irradiation treatment is feasible. Bilirubin production is greater than bilirubin excretion at birth, physiological jaundice can occur in newborns within 2-3 days of birth, resulting in temporary high total bilirubin, total bilirubin 14.8mg/dl on the third day of jaundice can not be treated with blue light. However, it is necessary to monitor the change of total bilirubin value of the infant. Generally, physiological jaundice in newborns can be treated without special treatment, and will usually subside in about 5-7 days, or two weeks at the latest. If the jaundice does not subside or the total bilirubin value continues to rise, blue light irradiation can be used. At the same time, the cause of the elevated bilirubin should be clarified through examination, and the cause of the elevated bilirubin should be treated. Babies with day 3 jaundice and total bilirubin of 14.8mg/dl should go to the hospital in time for regular treatment under the guidance of the doctor.