Ureteropelvic Junction Obstruction

Ureteropelvic junction (UPJ) obstruction is a narrowing at the point where the renal pelvis connects with the ureter, which makes it harder for urine to pass normally to the bladder and can cause it to build up in the kidney.

Origin: It is often congenital, from a narrowed area or compression by a vessel, though it can also arise from scarring or inflammation acquired over time.

Possible symptoms: Flank pain, repeated urinary tract infections, blood in the urine, or, in some cases, a finding during an imaging study without clear symptoms.

Who handles it? The urologist is the professional suited to study this type of obstruction. If you notice persistent flank pain or recurring infections, it is a good idea for a specialist to evaluate your case in a personalized way.