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When the bladder wall is perforated during a TURBT | CION Cancer Clinics
A bladder perforation is a small hole made through the bladder wall while a tumour is scraped away. It is an uncommon but known risk, because a TURBT must go deep enough to sample the muscle. Most small perforations heal with a catheter left in for longer; a few need a repair operation. This page explains the kinds, how each is handled, the warning signs, and what it may change in your treatment. CION Cancer Clinics’ surgical oncologists in Hyderabad can talk this through with you.
MI
Medically reviewed by Dr. Mohammed ImaduddinConsultant Surgical Oncologist · MBBS, MS (General Surgery), MCh (Surgical Oncology) · last reviewed September 2026, next review due September 2027
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On this page
- What does it mean if the bladder was perforated during TURBT?
- What kinds of perforation are there?
- How is a perforation handled after it is found?
- Does a perforation mean something has gone badly wrong?
- Does a perforation change my cancer treatment?
- Common questions about bladder perforation during TURBT
The short answer
What does it mean if the bladder was perforated during TURBT?
A bladder perforation is a small hole made through the bladder wall while the tumour is being scraped away. It is an uncommon but recognised risk of TURBT, and most small perforations heal on their own with a catheter left in for longer.
Why it can happen at all
The bladder wall is thin, and a TURBT has to go deep enough to take a sample of the muscle under the tumour. Without that muscle, the pathologist cannot say whether the cancer has grown into it. So the surgeon works close to the outer edge of the wall on purpose. A tumour on a thin part of the bladder, a large tumour, or a sudden movement during the operation can take the scraping one step too far.
The leg-kick reflex
A nerve that runs to the thigh passes just outside the side wall of the bladder. When the electric loop works near it, the leg can jerk suddenly, and the bladder wall moves onto the loop. Anaesthetists can reduce this with a nerve block or full muscle relaxation when the tumour sits in that area.
A perforation is a known risk, not a sign that the operation was done carelessly. Ask your surgeon to explain what happened in your case.Not all the same
What kinds of perforation are there?
Where the hole leads decides how it is treated. Your discharge summary may use one of these words.
Outside the belly lining
The more common kind. Fluid leaks into the fatty space around the bladder but not into the belly itself. It usually heals with a catheter draining the bladder, so the wall is not stretched while it mends.
Usually managed with
- A catheter left in longer
- Antibiotics
- A dye X-ray before removal
Into the belly
Less common, usually on the top of the bladder. Urine can leak into the belly and irritate the lining there. Larger holes of this kind are often repaired with an operation, open or keyhole, on the same day.
Tiny and seen only on the report
Sometimes the pathologist sees fat in the sample, which means the scraping reached the outer surface. If the surgeon saw no leak and you are well, nothing extra may be needed beyond caution with bladder treatments.
Not sure whether this applies to you?
Ask an oncologist
!
Signs that need the emergency department today
After a TURBT, go to the nearest emergency department the same day if your belly becomes swollen, hard or increasingly painful, if you have a fever or shivering, if pain spreads to your shoulder, or if the catheter stops draining. Tell them you had a TURBT and when. Do not wait for your next clinic appointment to mention it.
Step by step
How is a perforation handled after it is found?
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During the operation
Most perforations are spotted straight away: the surgeon sees fat or a gap through the telescope, or the washing fluid stops coming back. The scraping is stopped or finished quickly and bleeding is controlled.
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Deciding whether it needs repair
The surgeon judges the size and where it leads. Sometimes a scan or a dye X-ray of the bladder is done. A small leak outside the belly lining is left to heal. A leak into the belly may need a repair operation.
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The catheter stays in longer
Instead of coming out after a short time, the catheter stays so the bladder stays empty and relaxed while the hole seals. You may go home with it. The nurse will show your family how to care for it.
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Checking before it comes out
Many teams do a dye X-ray, called a cystogram, to confirm there is no leak before removing the catheter. If a leak remains, the catheter stays a little longer.
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Commonly believed
Does a perforation mean something has gone badly wrong?
"A hole in the bladder means the bladder is ruined."
The bladder heals well. Most small perforations close with a catheter alone, and the bladder goes on to work as it did before. Long-term problems from a well-managed small leak are unusual.
"The cancer will now spread through the hole."
This worry is understandable, and doctors take it seriously. Tumour cells escaping through a perforation is thought to be rare. It is one reason chemotherapy is not put into the bladder while the wall is open, and why follow-up checks are planned.
"The surgeon must have made a mistake."
Perforation is a known risk that is explained before consent, precisely because a TURBT has to go deep enough to reach the muscle. A deep, thorough resection is what gives an accurate diagnosis. You are entitled to a clear explanation of what happened.
"We should push to have the catheter out sooner."
Removing it before the wall has sealed can reopen the leak. A few extra days of catheter are much easier than a second procedure.
Looking ahead
Does a perforation change my cancer treatment?
It can change the timing of some steps, but it rarely changes the overall plan. The plan is still built on the pathology report, which says what kind of tumour it was and whether it reached the muscle.
What may be delayed or skipped
The single dose of chemotherapy into the bladder that some people receive straight after a TURBT is not given when a perforation is known or suspected. Any later course of bladder treatments, or a planned second TURBT, usually waits until the wall has healed and a check confirms it.
Questions worth asking your surgeon
Which kind of perforation was it? Was it repaired? How long will the catheter stay, and will there be a dye X-ray first? Does this change when the pathology results will be discussed, or when any second operation happens? Write the answers down, because the days after surgery are a hard time to remember them.
What this page cannot tell you
It cannot tell you how your own bladder will heal or what your pathology report will show. Only the team who saw the bladder and read the sample can say that.
Questions we are asked
Common questions about bladder perforation during TURBT
How common is bladder perforation during TURBT?
Small perforations that heal with a catheter are uncommon, and larger ones needing an operation to repair are rare. The risk is higher with large tumours, tumours on thin parts of the wall and tumours near the nerve that makes the leg jerk. Your surgeon can explain your own risk before consent.
How long will I need the catheter?
Longer than after an ordinary TURBT. The exact time depends on the size and kind of hole and is decided by your surgeon, often after a dye X-ray shows the leak has sealed. Do not remove it or ask a local clinic to remove it early.
Will I need another operation to fix it?
Most people do not. A leak into the space around the bladder usually heals with drainage alone. A larger hole that leads into the belly is more often repaired with an operation, usually during the same anaesthetic or soon after. Your surgeon will tell you which applies.
Is the pain after a perforation different?
Some lower belly discomfort is common after any TURBT. Pain from a leak tends to be stronger, more spread across the belly, and may come with swelling or fever. Pain that keeps building rather than easing should be checked the same day.
Can I still have the chemotherapy dose into the bladder?
Not while the wall is open. The single dose given soon after surgery is skipped when a perforation is known or suspected, because the drug could leak outside the bladder. Your team will decide what, if anything, replaces it once the pathology report is back.
Will this affect how well my bladder works later?
For most people with a small, well-healed perforation, bladder function returns to what it was before. Some notice frequency and urgency for a while, as after any TURBT. Tell your team if it does not settle over the following weeks.
Can I travel home to my district with a catheter?
Often yes, once the team is happy you are well. Make sure you know how to empty and secure the bag, carry spares, and know where the nearest emergency department is at home. Keep the discharge summary with you in case you need care there.
Does a perforation make the cancer more likely to come back?
This page cannot answer that for you. Spread through a perforation is thought to be rare, and whether bladder cancer returns depends mainly on the tumour's type, grade and stage. Ask your surgeon whether the perforation changes your follow-up plan.
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Sources
- Cancer Research UK — Bladder cancer
- NHS — Bladder cancer: treatment
- American Cancer Society — Bladder cancer
- Macmillan Cancer Support — Bladder cancer
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Keep reading
Related pages
Detrusor Muscle in the Specimen: Why It MattersWhy the scraping has to reach the muscleSingle-Dose Chemotherapy Into the Bladder After TURBTThe dose that is skipped after a perforationDrains, Tubes, Lines and CathetersLooking after a catheter at homeComplications and Red FlagsWarning signs after any cancer operation
Talk to us
Told there was a perforation during your TURBT?
Tell us what the discharge summary says and we will help you understand it and plan the next step. If your belly is swollen or painful, go to the nearest emergency department now.