A ureteral obstruction is a blockage in your ureters. Your ureters are the tubes that carry urine from your kidneys to your bladder. Many conditions, including kidney stones, cancer, and ureteral ...

Ureteral obstruction: A blockage in the ureter, the tube that carries urine from the kidney to the bladder, which can lead to kidney damage and other complications. Urolithiasis: The formation of ...