Ureteral Stricture: Causes, Symptoms, and Reconstructive Options

A ureteral stricture is an abnormal narrowing of the ureter — the tube that carries urine from the kidney to the bladder. Left untreated, strictures can cause kidney damage, infection, and pain. Modern endoscopic and reconstructive techniques allow most strictures to be treated with excellent long-term success.

Common Causes

Ureteral strictures most often result from prior kidney stone treatment (especially impacted stones), pelvic surgery, radiation therapy, trauma, or, less commonly, tumor. Idiopathic strictures also occur, particularly at the ureteropelvic junction.

Symptoms and Diagnosis

Flank pain, recurrent urinary tract infections, and declining kidney function on lab tests are the most common presenting features. Diagnosis is confirmed with imaging — CT urogram, retrograde pyelogram, or MAG-3 renal scan to assess kidney drainage.

Treatment Options

Short strictures may be managed with endoscopic incision (endoureterotomy) and stent placement. Longer or recurrent strictures typically require reconstructive surgery — ureteral reimplantation, ureteroureterostomy, ileal ureter replacement, or buccal mucosal graft ureteroplasty. Robotic-assisted approaches now allow most reconstructions to be performed minimally invasively with faster recovery.

Long-Term Outlook

Success rates for reconstructive repair exceed 90% at experienced centers. Regular follow-up with imaging is important to confirm durable resolution and preserve kidney function.