Perineal Urethrostomy Surgery 


Perineal Urethrostomy, often referred to as “PU” is a surgical procedure recommended for male cats experiencing a life-threatening condition known as Urethral Obstruction. Without intervention, this condition can recur, causing distress for your pet and potentially leading to severe health complications.

Why This Surgery?

Urethral Obstruction happens when the urethra (the tube that carries urine from the bladder to the outside of the body) becomes blocked, often by crystals or stones. This can cause painful and potentially fatal complications. Male cats have a 15-40% chance of experiencing a urethral obstruction again in their lifetime. A PU surgery significantly lowers this risk.

Why perform surgery at Allied Veterinary Service?

  • Our surgeons have undergone rigorous residency training in small animal orthopedic and soft tissue surgery. 
  • Patients receiving this procedure typically receive spinal blocks (like epidurals) and/or regional pain blocks to ensure the best experience possible for your beloved pet.  
  • Our doctors will care for your pet 24/7 before and after your pet’s surgery and tailor treatment according to the patient’s needs. 

What Does Surgery Involve?

During PU surgery, the narrowest part of the urethra is removed. The surgeon then reconstructs the area to create a wider opening, similar to that of a female cat. This procedure reduces the likelihood of future obstructions.

Benefits of Surgery:

  • Reduced Risk of Re-obstruction: The chances of future blockage are significantly decreased by widening the urethral opening.
  • Pain Relief: Relieves the discomfort associated with urethral obstructions.
  • Improved Quality of Life: With a decreased risk of re-obstruction, your cat can enjoy a more comfortable and active life.

Risks and Complications:

While PU surgery is generally safe, there are potential risks:

  • Urinary Tract Infections and Stones: The new, wider urethral opening can be more prone to infections and stone formation.
  • Stricture Formation: If the surgery site is traumatized (often by the cat licking it), scar tissue (stricture) can form, which may require further surgical intervention.
  • Uncommon complications: Reobstruction and nerve damage around the surgery site could lead to urinary or fecal incontinence.

Recovery and Aftercare:

  • Elizabethan Collar: To prevent self-trauma, your cat will need to wear an e-collar for at least 14 days post-surgery.
  • Special Litter: Use shredded paper or pelleted newspaper litter instead of clay or sand to prevent irritation to the incision site.
  • Restricted Activity: Your cat should have limited activity and be confined to a calm, quiet space, away from other pets.
  • Monitoring: Close monitoring for any signs of infection or unusual behavior is crucial.

Cost Considerations:

Our experienced veterinary team can provide you with a detailed surgery cost estimate, including pre-operative and post-operative care.

Final Thoughts:

We understand that deciding to proceed with surgery for your pet is a significant decision. Our team is here to support you every step of the way, from discussing the procedure in detail to providing comprehensive post-operative care. Preventative measures depend on the cause of the blockage. Proper surgical procedure greatly reduces the risk of future urinary obstructions. However, owners should be aware that PU surgery does not prevent bladder inflammation or stone formation.

Legal Disclaimer:

This guide is only informational and should not replace professional veterinary advice. The outcomes and effectiveness of treatment may vary based on individual cases. Always consult with your veterinarian for the best course of action for your pet.

If you have any further questions or concerns, please do not hesitate to contact us.

Allied Veterinary Service - Emergency and Referral 
8301 93rd Ave N, Brooklyn Park, MN 55445 
(763) 463-9800
Open 24 hours