my baby boy livar.s problam and cidaniy stone probalm boy 2month and 7bday

A. Also, a newborn baby's liver is not fully developed, so it's less effective at removing the bilirubin from the blood. By the time a baby is about 2 weeks old, their liver is more effective at processing bilirubin, so jaundice often corrects itself by this age without causing any harm.