Acute unilateral obstructive uropathy

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Female urinary tract

Kidney anatomy

Male urinary tract

Acute unilateral obstructive uropathy is a sudden blockage in one or both of the tubes (ureters) that drain urine from the kidneys.

Obstructive uropathy - unilateral - acute; Ureteral obstruction

Unilateral obstructive uropathy is most often caused by a kidney stone, although injury or other conditions could cause the disorder.

When urine flow is blocked, it backs up into the kidney. This leads to kidney swelling, also called hydronephrosis.

You have a greater risk for unilateral obstructive uropathy if you have ureteral stones and tumors, kidney stones, and tumors in nearby such as the uterus and cervix.

Acute unilateral obstructive uropathy occurs in 1 in 1,000 people.

Review Date: 01/16/2007
Reviewed By: Marc Greenstein, DO, Urologist, North Jersey Center for Urologic Care, Denville, NJ. Review provided by VeriMed Healthcare Network.