Prolonged neonatal jaundice (PNNJ) is often caused by breast milk jaundice, but it could also point to other serious conditions (biliary atresia, congenital hypothyroidism). When babies with PNNJ receive a routine set of laboratory investigations to detect serious but uncommon conditions, there is always a tendency to overinvestigate a large number of well, breastfed babies. | Impact of a standardized protocol for the Management of Prolonged Neonatal Jaundice in a regional setting: An interventional quasi-experimental study