Perineal Urethrostomy in Cats

Permanent enlargement of the urethral opening may be recommended in male cats with recurrent urinary tract obstruction from calculi, mucoid plugs, or inflammation. Perineal urethrostomy is also indicated for irresolvable obstruction, strictures, irreparable distal urethral injuries, or neoplasia. The penile body, which is attached to the pelvis by the ventral penile ligament and ischiourethralis and ischiocavernosus muscles, must be completely mobilized to prevent postoperative stricture. The penile urethra is incised to the level of the bulbourethral glands and is sutured to the skin with a combination of interrupted and continuous sutures of absorbable material.