Causes of hydronephrosis in children

Hydronephrosis is mainly caused by two diseases:

one, ureteral obstruction, which is a common disease causing hydronephrosis. The reason is that a small segment of the ureter is narrowed and blocked, resulting in urine in the kidney not easy to stay in the bladder and stagnate in the kidneys. As long as the ureter is removed and reconnected, the ureter

can be kept unobstructed, and the hydronephrosis can be

.