DATA-BACKED GUIDE · UPDATED JULY 2026
Blocked bladder in a dog: emergency treatment cost in the UK
A dog straining to urinate but passing little or nothing is a genuine emergency, because a fully blocked bladder can become fatal within a day or two. It is less common in dogs than cats but tends to be caused by bladder stones lodging in the urethra. The real prices below show what emergency treatment costs, which rises fast the longer it is left.
The quick version
- A dog that cannot pass urine needs a vet immediately, day or night.
- In dogs the usual cause is a bladder stone stuck in the urethra.
- Treatment can range from unblocking and a catheter to surgery to remove stones.
- Out-of-hours emergency care costs more, so acting fast in daytime hours helps.
What people actually paid
The gap: advertised vs actually paid (medians)
People reported paying 10% more than the advertised list price for blocked bladder.
List prices are advertised prices; paid figures are what people reported, often for different cases and from a small sample so far. Treat the gap as a signal, not a quote.
Real prices, in people's own words
- £500“our cat went to the vet with a blocked bladder. I think it cost about £500”
- £500“About 2 years ago, our cat went to the vet with a blocked bladder. I think it cost about £500”
- £700“vet bill before insurance was around £700 for drugs, xrays, ct scan, sedation”
- £790“Took him in Thursday, cost £790!”
- £790“Took him in Thursday, cost £790!”
- £895“Another £895!!”
Genuine amounts posted publicly. We publish the price and the quote, never the person.
Why the price varies so much
The bill depends on what is causing the blockage and how much damage has been done by the time you arrive. Relieving the obstruction with a catheter and a hospital stay is one level of cost, but if bladder stones are to blame, surgery to remove them and a stay for recovery push the figure much higher. A blockage left too long can cause kidney damage that needs intensive fluids and monitoring. Timing and place matter as well, since out-of-hours emergency clinics charge premium rates, and corporate practices ran about 18.3% above independents in 2026.
How to pay less
- Get to a vet the moment your dog struggles to urinate, before kidney damage sets in.
- Call your day practice first if it is open, as an out-of-hours vet charges premium fees.
- Hold a lifetime pet insurance policy, since blocked-bladder emergencies are usually covered.
- Follow any prescribed diet afterwards to lower the chance of stones and repeat surgery.
Common questions
How do I know if my dog's bladder is blocked?
Warning signs include repeated straining with little or no urine, crying out, a swollen tender belly, restlessness and vomiting. This is an emergency, so if your dog cannot urinate you should contact a vet straight away, including out of hours.
Why is a blocked bladder so dangerous?
When urine cannot leave the body, toxins build up and pressure backs up to the kidneys, which can cause kidney failure and a dangerous rise in blood potassium within a day or two. Without prompt treatment it can be fatal, so speed is critical.
Does insurance cover a blocked bladder in dogs?
Accident and lifetime policies generally cover the emergency treatment, catheterisation and any surgery for bladder stones, subject to your excess. A pre-existing urinary condition may be excluded, so check your policy wording before you need it.