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Condition
The ureter is the tube that drains urine from the kidney down to the bladder. In some conditions, a portion of the ureter can be narrowed, which is called a stricture. This can be congenital, or the result of scarring from previous surgery, urinary …
Condition
What are posterior urethral valves? Posterior urethral valves are obstructing flaps of tissue in the male urethra (the tube that carries urine from the bladder to the tip of the penis) that prevent normal urine flow from the bladder. They are the most …
Condition
What is a ureteropelvic junction obstruction? A ureteropelvic junction obstruction (UPJO) is a blockage of urine flow from the renal pelvis to the ureter. The renal pelvis is the part of the kidney that collects the urine made by the kidney and the …