Acute unilateral obstructive uropathy

  • Definition

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

    See also:

    • Acute bilateral obstructive uropathy
    • Chronic unilateral obstructive uropathy
    • Chronic bilateral obstructive uropathy
    • Obstructive uropathy

    Alternative Names

    Obstructive uropathy - unilateral - acute; Ureteral obstruction


    Causes, incidence, and risk factors

    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 body structures such as the uterus and cervix.

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