Medical Oncologist
CION Cancer Clinics
Bleeding and clot retention after TURBT | CION Cancer Clinics
Pink or light red urine on and off for a week or two after a TURBT is expected, because the raw patch inside the bladder oozes as it heals. Dark red urine, thick clots, or being unable to pass urine is not expected. That is clot retention, and it needs same-day care. This page explains what the first weeks usually look like, what is done if clots block the bladder, and what lowers the chance. 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
- How much bleeding after a TURBT is normal?
- What does the urine usually look like, and when?
- What is done for clot retention in hospital?
- What actually helps at home?
- Who is more likely to bleed, and what this page cannot tell you
- Three things families tell us, and what is actually true
- Common questions about bleeding after TURBT
The short answer
How much bleeding after a TURBT is normal?
Pink or light red urine on and off for a week or two is expected after a TURBT. The operation leaves a raw patch inside the bladder, and it oozes as it heals. What is not expected is dark red urine, thick clots, or being unable to pass urine. Those are the signs of clot retention, and that needs same-day care.
What clot retention is
Blood clots inside the bladder. If they are small they pass with the urine. If they are large, or many, they block the outlet. Urine then builds up behind them, the bladder stretches, and the pain grows. A stretched bladder also bleeds more, so the problem feeds itself until the clots are washed out.
Why it happens after this operation in particular
The bladder cannot rest. Unlike a wound on the skin, it fills and empties all day, and the raw area is pulled each time. Urine also stops blood from clotting properly, so the bleeding stays liquid until enough of it collects to form a clot. Most people never get to that point. Some do, and it is a common reason for coming back to hospital.
This page describes what to expect and when to act. If you are unsure about what you are seeing right now, call.
!
Go the same day if any of these happen
You cannot pass urine, or only a trickle comes with straining. The lower belly is swollen and painful. The urine is dark red like wine rather than pink, or you are passing thick clots. You feel faint or dizzy when standing. Go to the nearest emergency department and say a TURBT was done and when. Do not keep drinking water to "flush it through" if nothing is coming out. Do not wait for morning.
Not sure whether this applies to you?
Ask an oncologistThe first weeks
What does the urine usually look like, and when?
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The first day, in hospital
Urine drains through a catheter and is often red at first. Fluid may be run through the catheter to keep clots from forming. The nurses watch the colour, and it usually turns pink before the catheter comes out.
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The first few days at home
Pink urine, sometimes with small specks or threads. Burning and a need to go often. The colour may vary from one visit to the next. Drinking normally helps keep the urine dilute.
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Around one to two weeks
The scab over the raw area separates, and many people get a second episode of pink or red urine, sometimes after it had cleared. This is expected. It should settle within a day or two and should not bring clots that block the flow.
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After that
Urine should be clear most of the time. Occasional pink after exertion or constipation can happen while healing completes. New bleeding weeks later that keeps going is not part of healing and needs a call to the team.
If it happens
What is done for clot retention in hospital?
A wide catheter is passed
A larger tube than the one used at the operation, so clots can come through it. This is done with numbing gel and is uncomfortable rather than painful. Relief usually comes as soon as urine drains.
The bladder is washed out
Sterile fluid is pushed in and drawn back through the catheter with a syringe until the clots are cleared and the fluid runs pink rather than red. This may take a while and may be repeated.
Fluid is kept running
A drip of fluid through the catheter, called irrigation, keeps the bladder rinsed so new clots do not form. It runs until the urine is clear enough, usually a day or so, sometimes longer.
Rarely, back to theatre
If bleeding does not settle, the surgeon looks again through the telescope, clears the clot and seals the bleeding point with heat. This is uncommon, and it is the same route as the original operation.
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Lowering the chance
What actually helps at home?
None of these is a promise. They are the things that make clots less likely while the raw patch heals.
Drink normally, spread through the day
Dilute urine is less likely to clot. Aim for pale yellow urine when it is not pink. Do not force very large amounts, and do not restrict fluids in the evening.
Avoid straining
Constipation, heavy lifting and hard exercise all raise pressure on the healing area. Ask the ward for a stool softener if you are prone to constipation, and take the first two weeks gently.
Usually asked to avoid
- Lifting anything heavy
- Cycling and long two-wheeler rides
- Sexual activity until the urine has cleared
Take the medicine plan exactly as set
If a blood thinner was paused, restart it only when the surgeon and the prescribing doctor have agreed a date. Restarting early is a common reason for late bleeding. Stopping it for longer than advised carries its own risks, so do not decide this alone.
Being straight with you
Who is more likely to bleed, and what this page cannot tell you
Bleeding is more likely after a large resection, after removing several growths, and in people taking a blood thinner such as aspirin, clopidogrel, warfarin or one of the newer tablets. An enlarged prostate, a urine infection, and a bladder that was already inflamed all add to it. If any of these apply, the team will usually keep the catheter a little longer and say exactly what to watch.
A word about blood thinners
These medicines are prescribed for a reason, often a heart stent or a past clot, and stopping them carries a risk of its own. So the plan for pausing and restarting is agreed between the surgeon, the anaesthetist and the doctor who prescribed them, before the operation. Never change the timing on your own, in either direction, and never restart because the urine looks clear.
What the page cannot tell you
Whether the bleeding you are seeing tonight is within the normal range. Colour is hard to judge in a toilet bowl, and a small amount of blood turns a lot of urine pink. The rule that helps most: if urine is flowing freely and the colour is pink or light red, it is usually healing. If the flow is blocked or the colour is dark, act. When in doubt, call rather than watch.
Commonly believed
Three things families tell us, and what is actually true
"He cannot pass urine, so we are giving him more water to push it out."
If the outlet is blocked by clot, more water only stretches the bladder and makes it bleed more. A blocked bladder needs a catheter and a washout, and the sooner that is done the easier it is. Stop the water and go.
"The urine was clear and now it is red again, so the cancer is back."
A second episode of bleeding around one to two weeks is usually the scab separating from the raw patch. It is a normal stage of healing, not a sign of the cancer, and it should settle within a day or two. Bleeding that persists still needs a call.
"We stopped his aspirin ourselves so he would not bleed."
Please do not. Aspirin and similar tablets protect the heart and brain, and stopping them without a plan can cause a different emergency. The surgeon and the prescribing doctor agree the timing together, and that plan is written down before the operation.
Questions we are asked
Common questions about bleeding after TURBT
How long will the urine stay pink?
On and off for a week or two is typical, with clear days in between. Many people get a second pink episode around the time the scab separates. If pink urine is still appearing most days after a few weeks, or if it becomes red rather than pink, tell the team.
Small threads or specks in the urine, is that a clot?
Small specks and threads that pass easily are common and are not the same as clot retention. The concern is clots large enough to slow or block the flow, or urine that is dark red. If the urine is flowing freely and the colour is pink, small debris is usually part of healing.
Is there a medicine to stop the bleeding?
Sometimes a tablet that helps blood clot is prescribed for a short time, and any urine infection is treated because infection makes bleeding worse. Neither is a substitute for a washout if the bladder is blocked. Do not take a relative's tablets or anything bought over the counter without asking.
My father is on warfarin. When does it restart?
On the date agreed by the surgeon and the doctor who prescribes it, which should be written on the discharge sheet. If it is not written down, call and ask before the next dose is due. The right date depends on why he takes it and how much was removed, so it differs from person to person.
Can we manage clot retention at home?
No. Clearing clots needs a wide catheter and a washout, done by someone trained to do it. Trying to wait it out, or drinking more, makes the bladder stretch and bleed further. Go to the nearest emergency department the same day and say a TURBT was done.
Will the catheter have to go back in?
If there is clot retention, yes, usually for a day or so while the bladder is rinsed. That is the treatment, not a setback. Once the urine runs clear enough and you can pass urine on your own, it comes out again, and most people go home the same or the next day.
Does bleeding mean the operation did not work?
No. Bleeding is about the raw area healing, not about whether the cancer was removed. That answer comes from the pathology report about a week after the operation, and from the check cystoscopies that follow. The two things are separate.
Is a return visit for bleeding covered by the scheme or insurer?
Usually it is treated as part of the same episode of care, but rules differ between Aarogyasri, CGHS, ECHS, EHS and cashless insurers. Go first and sort the paperwork after; the bladder cannot wait for an approval. Call the helpline for help with the claim.
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Sources
- Cancer Research UK — Bladder cancer: treatment
- Macmillan Cancer Support — Bladder cancer
- NHS — Bladder cancer: treatment
- American Cancer Society — Bladder cancer surgery
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
Bladder Irrigation After TURBTThe fluid run through the catheter, explainedBurning and Frequency After TURBTThe other common symptom of the first weekTURBT: What the Operation InvolvesWhy the bladder is left with a raw patchMedicines Around Cancer SurgeryHow blood thinners are handled before and after an operationComplications and Red FlagsThe other signs that need a same-day call
Talk to us
Worried about bleeding after a TURBT?
If urine is not flowing or is dark red, go to the nearest emergency department now. For anything less urgent, call the helpline and a nurse or surgical oncologist will tell you what to do next. One helpline serves every CION centre.