PUJ Obstruction Treatment in Delhi
Specialised diagnosis and treatment for PUJ obstruction, hydronephrosis, recurrent flank pain and impaired kidney drainage. Dr. Gautam Banga provides personalised evaluation and surgical management, including minimally invasive pyeloplasty, based on kidney function and the severity of obstruction.
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Overview
What Is PUJ Obstruction?
Pelvi-Ureteric Junction (PUJ) Obstruction, also called Ureteropelvic Junction (UPJ) Obstruction, is a blockage or narrowing where the kidney’s renal pelvis connects with the ureter—the tube that carries urine from the kidney to the bladder.
When this junction is narrowed, urine cannot drain properly and may collect inside the kidney, causing hydronephrosis (swelling of the kidney). Persistent obstruction can eventually affect kidney function if it is severe or left untreated.
Important: Not every patient with hydronephrosis requires surgery. Treatment depends on symptoms, degree of obstruction, kidney drainage and renal function.
Causes
What Causes PUJ Obstruction?
Congenital Narrowing
Many PUJ obstructions are present from birth because the junction between the kidney and ureter does not develop normally.
Crossing Blood Vessel
A blood vessel crossing over the PUJ may compress the ureter and interfere with normal urine drainage.
Kidney Stones
Stones near the upper ureter may cause inflammation, obstruction or scarring around the PUJ.
Previous Surgery
Previous kidney or ureter surgery may occasionally result in scar tissue and narrowing.
Infection & Inflammation
Repeated upper urinary tract infections can contribute to inflammation and narrowing in adults.
Scar Tissue
Fibrosis or scarring around the ureter may restrict normal urine flow from the kidney.
Symptoms
Signs & Symptoms of PUJ Obstruction
- Pain in the side or back (flank pain)
- Kidney stones
- Pain after drinking large amounts of fluid
- Hydronephrosis on ultrasound
- Nausea or vomiting
- Difficulty with hygiene or sexual function
- Blood in the urine
- Reduced kidney function in severe cases
Diagnosis
How We Diagnose PUJ Obstruction
Proper diagnosis is important to determine whether hydronephrosis represents a true obstruction and whether the affected kidney is functioning adequately.
- Ultrasound – checks for hydronephrosis and kidney swelling.
- Renal Function Tests – blood and urine tests help assess overall kidney function.
- Diuretic Renogram / Renal Scan – evaluates drainage from the kidney and measures split renal function.
- CT Scan – may identify stones, crossing vessels or other anatomical causes.
- MRI / MR Urography – may provide detailed urinary tract anatomy in selected patients.
- Urine Tests – check for infection, blood or other urinary abnormalities.
- Serial Imaging – repeated scans may be used to monitor kidney drainage and function when immediate surgery is not required.
Treatment
PUJ Obstruction Treatment Options
Why Dr. Gautam Banga
Why Choose Dr. Gautam Banga for PUJ Obstruction Treatment?
Reconstructive Urology Expertise
Treatment decisions are based on symptoms, drainage studies, hydronephrosis and kidney function rather than imaging alone.
Kidney Function Assessment
Every procedure is planned according to the patient's anatomy, underlying condition, functional needs and realistic expectations.
Minimally Invasive Approach
Appropriate patients can be evaluated for laparoscopic or minimally invasive pyeloplasty.
Personalised Treatment Planning
Treatment is tailored according to age, anatomy, kidney function, symptoms and previous surgical history.
Dr. Gautam Banga
Consultant Andrologist & Genito-Urinary Reconstructive Surgeon
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Frequently Asked Questions
PUJ obstruction is a narrowing where the kidney meets the ureter, preventing urine from draining normally into the ureter.
Yes. PUJ (Pelvi-Ureteric Junction) and UPJ (Ureteropelvic Junction) obstruction refer to the same condition.
It is commonly congenital, but crossing blood vessels, kidney stones, previous surgery, infection or scar tissue can also contribute, particularly in adults.
Symptoms may include flank pain, nausea, recurrent UTIs, blood in urine, kidney stones and hydronephrosis.
Yes. Persistent or severe obstruction can impair kidney drainage and may eventually cause permanent kidney damage.
Diagnosis usually involves ultrasound and a renal or diuretic scan. CT or MRI may also be used to assess anatomy and possible causes.
No. Patients with stable kidney function and mild disease may sometimes be monitored. Surgery is considered when obstruction causes symptoms, impaired drainage or deterioration in kidney function.
Pyeloplasty is reconstructive surgery in which the narrowed PUJ segment is removed and the healthy ureter is reconnected to the renal pelvis to improve urine drainage.
Published guidelines report approximately 95% success for dismembered pyeloplasty, although individual outcomes depend on anatomy, kidney function and previous surgery.
Recurrence is possible but uncommon after successful pyeloplasty. Persistent or recurrent symptoms require follow-up imaging and kidney drainage assessment.