The main causes of hydronephrosis in children

Hydronephrosis is caused by obstruction of the urinary system, resulting in renal pelvis, renal calyx dilatation and urinary retention. Because of the increase in renal urine volume, renal pelvis and renal calyx enlargement, resulting in renal atrophy, such as urinary tract infection renal parenchyma atrophy, also known as infectious

hydronephrosis.