Chesapeake Urology Associates

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UPJ Obstruction

Ureteropelvic junction (UPJ) obstruction is a blockage in the area that connects the renal pelvis (part of the kidney) to the tube (ureter) that drains urine to the bladder.

UPJ obstruction is often a congenital condition that causes urine to build up in the kidney itself. This can cause:

Pain
Infection
Kidney stones
Decreased kidney function

The condition can also be caused when a blood vessel is located over the ureter. In older children and adults, UPJ obstruction can also be due to scar tissue, infection, previous treatments for a blockage, or kidney stones.

UPJ obstruction is often found incidentally during evaluation for other problems. CT scans, kidney function studies, and minor procedures may help confirm an actual obstruction.

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Pelvic Organ Prolapse

UPJ Obstruction