Ureteropelvic Junction Obstructions(UPJ)

Ureteropelvic junction obstruction(UPJ) also known as Pelviureteric junction obstruction (PUJ) obstruction is a blockage due to the narrowing of the area connection between the ureters to the renal pelvis (part of the kidney). Mostly this condition occurs in the fetal stage. It is now commonly diagnosed during prenatal ultrasound studies.

Types & Causes:

  • Cogenital- From birth (Prenatal).
  • UTI (Urinary Tract Infection).
  • Kidney infections.
  • Kidney stones.
  • Ureter inflammation.
  • Uretery compression.
  • Scar tissue.
  • Tumor.
  • Abnormality in the blood vessels.
  • Blood in the urine ie hematuria.
  • Abdominal discomfort.


  • Back or flank pain
  • Bloody urine (hematuria)
  • Lump in the abdomen (abdominal mass)
  • Kidney infection
  • Poor growth in infants (failure to thrive)
  • Urinary tract infection, usually with fever
  • Vomiting

Diagnosis Tests:

  • Prenatal ultrasound.
  • BUN.
  • Nuclear scan of kidneys
  • IVP
  • CT scan
  • Creatinine clearance
  • Electrolytes
  • Voiding cystourethrogram


  • Natural cure.
  • CHOP- Robotic-assisted laparoscopic pyeloplasty
  • Incision pyeloplasty.


  • Swollen ureter.
  • Higher risk of kidney infections and stones.
  • Abnormal drainageof the kidneys.
  • Incision Surgery: Abdominal adhesions/ scarring.

Prevention & Precaution is Better than Cure:

Regular check-up and tests.

Alternative Therapies:

Psychological counseling.

All above, treatments are finalized taking into consideration the overall health, severity, age and other ailments of the patient.