Ureteral & Kidney Conditions
Narrowing of the ureter between the kidney and bladder: causes, testing, and robotic repair that can end the need for stents.
Written and reviewed by Shervin Badkhshan, MD · Last reviewed
November 2026
Part of:
Ureter and kidney drainage
Hospital, 1 night
Stent: several weeks
Fellowship-Trained Reconstructive Urology
AT A GLANCE
From symptoms to treatment
1. SYMPTOMS
• Flank pain or infections • Long-term stent or drain
3. TREATMENT
• Stents or drains • Robotic reconstruction • Cheek-graft ureteroplasty
Surgical options →
A ureteral stricture is a narrowing of the ureter, the tube between the kidney and bladder. Urine backs up toward the kidney, and over time the kidney can lose function. It affects both men and women.
Common causes
Kidney stones and stone procedures
Prior pelvic or abdominal surgery, including hysterectomy and colon surgery
Radiation
Injury, infection, or rarely a tumor
What you might notice
Flank pain, infections, or no symptoms. Many people come to me with a stent or a kidney drain (nephrostomy) that has to be changed every few months.
How I evaluate it
CT, a renogram to measure kidney function and drainage, and X-ray dye studies from above and below to map the length and location of the narrowing.
Treatment
Long-term stents or drains are an option, but they need regular changes and can cause discomfort. Robotic reconstruction is the lasting fix: reconnecting the ureter, reimplanting it into the bladder, or widening it with a graft from inside the cheek (buccal ureteroplasty), depending on where the stricture is and how long.
Related
Robotic ureteral reconstruction · Robotic ureteroplasty · Ureteral reimplantation
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