How much does cat urinary blockage surgery cost?

Cat urinary blockage surgery cost in 2026: typical US prices for unblocking, hospitalization and PU surgery, what drives the bill, and how to pay for it.

Vet costs · Kidneys & urinary · 4 sources
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Quick answer

Treating a blocked cat usually costs $1,500 to $4,000 at a regular US clinic and $2,500 to $6,000 at an emergency hospital, covering unblocking with a catheter and 2 to 4 days in the hospital. If your cat keeps blocking and needs PU surgery, total cat urinary blockage surgery cost is often $2,500 to $6,000 or more.

A urinary blockage is one of the most urgent problems a cat can have. Don’t let cost delay the visit. Call the clinic on the way and ask for an estimate when you arrive.

How much does cat urinary blockage surgery cost?

Most of the bill comes from unblocking and hospitalization, not surgery. The table shows typical prices at a regular clinic. Emergency and after-hours hospitals usually charge about 1.5 to 2 times more.

Item Typical cost (US)
Emergency exam $100 – $250
Bloodwork and electrolytes $120 – $260
Urinalysis $50 – $100
X-rays (2 views) $150 – $350
Sedation and urinary catheter $300 – $800
Hospital stay (per night) $300 – $1,000
Full unblocking treatment, 2 to 4 days $1,500 – $4,000
PU surgery (surgery and anesthesia) $1,500 – $4,000

A PU surgery done by a board-certified surgeon usually costs more than one done at a general practice. Add in the hospital stay afterward, and the total for surgery is often $2,500 to $6,000. You can build your own estimate with our cat vet cost estimator.

What does unblocking a cat involve?

Unblocking means clearing the plug of crystals, mucus or a small stone from the urethra, the narrow tube that carries urine out of the body. It’s almost always male cats, because their urethra is much narrower than a female’s.

Your cat is sedated or anesthetized, and the vet passes a thin catheter into the urethra to flush the plug back into the bladder. The catheter is usually stitched in place for one to three days so the urethra can heal and urine can drain.

Before that, the vet often needs to stabilize your cat. A blocked cat can build up potassium in the blood, which affects the heart. Bloodwork, IV fluids and heart monitoring come first, which is part of why the bill climbs quickly. See the signs and causes of urinary blockage in male cats for more on why it happens.

How long is hospitalization for a blocked cat?

Most cats stay in the hospital for two to four nights. Hospitalization usually includes:

  • IV fluids to flush the kidneys and correct electrolytes
  • the urinary catheter and a closed collection bag
  • pain relief and medicine to relax the urethra, chosen and dosed by your vet
  • repeat bloodwork to check kidney values and potassium
  • monitoring after the catheter comes out, to make sure your cat can pee alone

The number of nights is the biggest thing that changes the price. A cat that was blocked for a short time and recovers fast costs less than one with kidney damage or a heart rhythm problem. Ask the clinic for an updated estimate each day.

When does a cat need PU surgery?

Perineal urethrostomy, or PU surgery, removes the narrowest part of a male cat’s urethra and creates a wider opening. Crystals and small plugs can then pass out instead of getting stuck.

Vets usually recommend it when:

  • your cat has blocked more than once, despite diet changes and other care
  • the urethra can’t be unblocked with a catheter
  • the urethra is scarred or damaged from past blockages

PU surgery works well at preventing further full blockages. It doesn’t cure the underlying bladder problem, so cats can still get bladder inflammation, crystals or blood in the urine. Cats who have had PU surgery are also more prone to bladder infections, so your vet may suggest regular urine tests. Recovery takes about two weeks, with a cone to stop licking.

Will my cat block again, and what does aftercare cost?

Re-blocking is common, especially in the first days and weeks after the catheter comes out. That’s why follow-up care matters. Typical ongoing costs include:

Aftercare Typical cost (US)
Recheck exam and urinalysis $110 – $230
Prescription urinary diet (per month) $40 – $100
Medicines to go home $30 – $100

To lower the risk, most vets recommend wet food, more water (fountains and extra bowls help), a prescription diet if crystals were found, and less stress at home. Watch the litter box closely for the first few weeks. Any straining means going straight back to the vet.

How can I pay for my cat’s blockage treatment?

  • Ask for an estimate with a low and high range. Clinics usually ask for a deposit before treatment starts.
  • Ask about options. For some cats, vets can discuss a shorter hospital stay or other lower-cost approaches. These aren’t right for every cat, but it’s worth asking. Leaving a blocked cat untreated is never an option.
  • Ask about payment plans and veterinary financing. Many clinics work with third-party lenders that offer interest-free periods.
  • Check your pet insurance. Accident and illness plans usually cover blockages if the urinary problem started after enrollment. Most pay you back after the visit, so you may need to cover the bill first.

Emergency clinics price everything higher, so read what emergency vet care for cats costs and browse more price guides in cat vet costs. If you’re not sure where your nearest 24-hour clinic is, our cat emergency guide can help you plan ahead.

Frequently asked questions

Does every blocked cat need surgery?

No. Most blocked cats are treated first by unblocking with a urinary catheter, without surgery. PU surgery is usually reserved for cats that block again after treatment or that can't be unblocked with a catheter.

Can a blocked cat wait until morning to see the vet?

No. A cat that can't pee can develop dangerous potassium levels and kidney damage within hours, and can die within a day or two without treatment. Go to an emergency vet now, day or night.

Is PU surgery cheaper than repeated unblocking?

Over time it can be. One PU surgery often costs about the same as one or two unblocking stays, and it greatly lowers the chance of another full blockage. Your vet can help you weigh the costs for your cat.

Sources

  1. Cornell Feline Health Center: Feline lower urinary tract disease
  2. Merck Veterinary Manual: Urethral obstruction in small animals
  3. VCA Animal Hospitals: Perineal urethrostomy surgery in cats
  4. International Cat Care: Feline lower urinary tract disease (FLUTD)

Written by the CatsMed Team from the sources above. This guide isn’t reviewed by a veterinarian and isn’t a substitute for one. See how we research.

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