With the increasing use of ultrasonography,congenital anomalies are often picked in utero.Antenatally detected hydronephrosis is amongst the most commonly detected abnormality.The management of this condition has raised considerable debate amongst clinicians dealing with it.This article is written with an idea to provide comprehensive information regarding the postnatal management of antenatally detected hydronephrosis.A detailed review of the current literature on this topic is provided.Also,guidelines have been given to facilitate the management of this condition.