What it is hydroureterosis?

Answer 1

Hydroureterosis defines the swelling of one or both ureters. The ureters are tube-like structures that drain urine from the kidney to the bladder. Hydroureterosis may result from an obstruction of the urinary system either at the end of the ureter (see "ureterocele") or past the ureter (bladder, urethra, penis/vagina). Another cause of hydroureterosis may be vesicoureteral reflux. This is an anatomical problem resulting in urine flushing backwards from the bladder through the ureters and towards the kidneys, instead of out through the urethra when one attempts to urinate.