How Do You Pee After Bladder Removal Surgery?

After bladder removal surgery, urine still leaves your body, but the plumbing changes dramatically. Because the bladder is gone, surgeons reroute urine using a section of your intestine, creating what is called a urinary diversion. There are three main approaches, each with a fundamentally different day-to-day experience: an external collection bag, an internal replacement bladder you can urinate from in a roughly normal way, or an internal pouch you drain yourself with a thin catheter through a small opening in your skin. Which one you end up with depends on several factors, and none of them works quite the way your original bladder did.

Why the Bladder Gets Removed in the First Place

The surgery is called a radical cystectomy, and it is the standard treatment for muscle-invasive bladder cancer, meaning cancer that has grown into the muscular wall of the bladder.¹ The entire bladder is removed, along with surrounding lymph nodes and, in many cases, nearby structures like the prostate in men or the uterus and part of the vaginal wall in women. Once the bladder is gone, the kidneys keep making urine as they always have, but there is no longer a reservoir to hold it. The surgeon has to build a new exit route during the same operation.

The Three Types of Urinary Diversion

Every option uses a piece of your own intestine to handle urine. The bowel segment is detached from the digestive tract, reshaped, and connected to the ureters (the tubes running from the kidneys). The digestive tract is then stitched back together so it works normally. What differs is where the urine goes from there.

Ileal Conduit

This is the most common and simplest diversion. The surgeon takes a short section of the small intestine, connects the ureters to one end, and brings the other end out through a small opening in the abdomen called a stoma. Urine drains continuously into an adhesive pouch worn on the skin over the stoma. You empty the pouch periodically throughout the day, usually by opening a valve at the bottom over a toilet. There is no voluntary control over when urine flows. The appeal of the ileal conduit is a shorter, less complicated surgery and fewer long-term complications related to the diversion itself. The trade-off is wearing an external bag at all times.

Orthotopic Neobladder

A neobladder, sometimes called a new bladder or bladder substitute, is an internal reservoir fashioned from a longer segment of detubularized ileum (the lower part of the small intestine). The bowel is opened and reconfigured into a roughly spherical pouch, which creates a low-pressure, high-capacity container.² That pouch is then sewn directly to the urethra, so urine exits your body the same way it used to. There is no stoma and no external bag. You sit down on the toilet and urinate, though the mechanics of pushing urine out are different, as explained below.

Continent Cutaneous Pouch

This option creates an internal reservoir similar to a neobladder, but instead of connecting it to the urethra, the surgeon brings a narrow channel out to a stoma on the abdomen. The channel is designed with a valve mechanism that keeps urine inside until you insert a catheter through the stoma to drain it, usually every four to six hours.³ Between catheterizations, the stoma stays dry and can be covered with a small bandage. This is sometimes chosen when the urethra cannot be preserved or when a neobladder is not feasible but the patient wants to avoid an external bag.

How You Actually Urinate with a Neobladder

If you had a natural bladder, urination involved a coordinated squeeze of the bladder muscle combined with relaxation of the sphincter. A neobladder has no muscle of its own. The intestinal tissue it is made from does not contract on demand the way bladder muscle does. So to push urine out, you bear down using your abdominal muscles, a technique sometimes called the Valsalva maneuver. You relax the pelvic floor, increase pressure in your abdomen, and urine flows through the urethra by gravity and pressure.

Learning this takes practice. Most patients need weeks to months before the process feels anything close to routine. Pelvic floor muscle training, done under professional supervision for at least three months, is recommended as a first-line approach to help with both continence and effective emptying.⁴ The exercises strengthen the muscles that help you hold urine in and relax them at the right time so urine flows out efficiently.

One thing that catches people off guard is the absence of the urge to urinate. Your original bladder had stretch receptors that sent signals to your brain as it filled. A neobladder made of intestinal tissue does not have those receptors. Over time, many people learn to recognize a vague sense of fullness or pressure in the pelvis, but it is subtler and less reliable than the old sensation. Early on, you void on a schedule, typically every three to four hours, rather than waiting for a signal that may never come.

Nighttime Incontinence and How to Manage It

Daytime continence with a neobladder is generally good for most patients. Nighttime is a different story. When you are asleep, you cannot consciously hold the pelvic floor tight or wake yourself to void on schedule, and the neobladder keeps filling. The absence of the normal sensation that would wake you up when your bladder is full means urine can accumulate past the point where the sphincter can hold it.⁵ The result is nocturnal leakage, sometimes called nocturnal enuresis, which is common in neobladder patients.

The most straightforward management strategy is setting an alarm clock to wake up once or twice during the night and emptying the neobladder before it overfills.⁵ Some patients wear absorbent pads at night as a safety net. Over months, nighttime continence can improve as the pelvic floor strengthens and the neobladder capacity stabilizes, but some degree of nighttime leakage remains a reality for a sizable number of people long-term.

When You Need a Catheter Even with a Neobladder

Not everyone with a neobladder can empty it completely by bearing down. If residual urine consistently stays in the pouch after voiding, you may need to perform clean intermittent catheterization, which means inserting a thin, flexible catheter through the urethra periodically to drain the leftover urine. In one study of over 100 patients, roughly three-quarters did not need regular catheterization, while about a quarter reported catheterizing at least once daily to fully empty.⁶

The likelihood of needing catheterization also appears to increase with time. A long-term study found that freedom from any catheterization was about 85% at three years, dropped to around 77% at five years, and fell further to roughly 62% at ten years.⁷ The neobladder can gradually lose its contractile efficiency, and the pelvic floor or outlet can change over the years. So even if you void well early on, your surgical team will likely monitor your emptying ability at follow-up visits.

Some research suggests that starting catheterization early after surgery, even before it becomes strictly necessary, can improve outcomes. A prospective study found that patients who performed self-catheterization four times daily after each voluntary void had lower rates of incontinence, urinary retention, and urinary tract infections, along with better quality of life scores.⁸ The reasoning is that regular, complete emptying keeps the pouch from overstretching and reduces the chance of infection from stagnant urine.

The Mucus Problem

Here is something almost nobody expects: because the new reservoir is made from intestine, it produces mucus. That is what intestinal lining does, and it does not stop just because the tissue is now holding urine instead of food. Continent urinary diversions produce roughly 35 grams of mucus per day.⁹ And this does not diminish with time. Studies show that mucus production continues indefinitely after intestinal segments are transposed into the urinary tract.¹⁰

For patients who empty well, mucus typically passes out with the urine and is not a major issue beyond making the urine look cloudy. For those who do not empty completely, mucus can accumulate and form thick plugs that block the catheter or clog the outlet. Right after surgery, catheters placed in the neobladder need to be irrigated carefully to prevent buildup. A sudden increase in mucus can also be an early warning sign of a urinary infection.⁹

If mucus plugs become a recurring problem, patients can learn to irrigate their pouch at home using a catheter and saline. Medications like N-acetylcysteine, which helps thin mucus, can be taken by mouth or instilled directly into the pouch.¹¹ In severe cases where a large plug has already formed, manual evacuation in a clinical setting may be necessary.

Metabolic Changes from Using Intestine

Intestinal tissue does not just sit passively while holding urine. It absorbs and secretes substances the way it was designed to when it was part of the digestive tract. When exposed to urine, the bowel segment absorbs ammonium, hydrogen ions, and chloride while releasing sodium and bicarbonate. This exchange can push the body toward a condition called hyperchloremic metabolic acidosis, where the blood becomes more acidic than it should be.¹²

The risk increases when a longer segment of bowel is used for the reconstruction. One study found that patients whose diversion used a longer detubularized intestinal segment (around 50 centimeters) had the highest rate of this acidosis, affecting over a third of those patients.¹³ The condition is usually mild and manageable with oral bicarbonate supplements, but when it goes unrecognized, it can cause fatigue, confusion, and in chronic cases, bone loss. This is why routine blood work to check your acid-base balance is a permanent part of follow-up care after any intestinal urinary diversion.

Vitamin B12 and Nutritional Monitoring

Another consequence of using intestinal tissue relates to nutrient absorption. The ileum, the segment of bowel most commonly used in these reconstructions, is also where your body absorbs vitamin B12. When a substantial length of ileum is removed from the digestive tract and repurposed, B12 absorption can decline. In a prospective study of patients with ileocolic neobladders, a quarter developed low serum B12 levels, and about 13% had confirmed malabsorptive B12 deficiency on further testing. One patient developed neurological symptoms nearly four and a half years after surgery.¹⁴

B12 deficiency develops slowly because the body stores enough to last a few years. This makes it easy to miss during early post-operative follow-up when everyone is focused on cancer surveillance and healing. By the time symptoms appear, often as numbness and tingling in the hands and feet or unexplained fatigue, the deficiency can be advanced. Periodic B12 blood tests and supplementation when needed are part of long-term care after these surgeries, though patients report that this detail sometimes falls through the cracks once their oncological follow-up winds down.

Kidney Health After Diversion

Your kidneys were not designed to drain into an intestinal pouch, and the connection between the ureters and the new reservoir can develop complications over time. Strictures (narrowing) at the junction where the ureter meets the bowel segment can obstruct urine flow and cause the kidney to swell, a condition called hydronephrosis. Kidney stones can also form more easily in the altered urinary chemistry. In one study tracking patients after radical cystectomy, those who developed hydronephrosis after surgery experienced a median kidney function decline of about a third, a steeper drop than those who did not develop the complication.¹⁵ Regular imaging and kidney function blood tests help catch these problems before they cause permanent damage.

Quality of Life Across Diversion Types

One of the biggest questions patients face before surgery is whether a neobladder actually leads to a better life than an ileal conduit. The answer is more nuanced than you might expect, and it depends partly on what aspects of life matter most to you.

In one well-known comparison, the results were striking at first glance. Among neobladder patients, nearly 93% said they did not feel handicapped at all, compared with about half of ileal conduit patients. Roughly 75% of neobladder patients felt completely safe and secure with their diversion, versus a third in the conduit group. Daytime urine leakage onto clothing affected only about 1.5% of neobladder patients but nearly half of those with conduits. And when asked whether they would recommend the same diversion to a friend, 97% of neobladder patients said yes, compared with just 36% of conduit patients.¹⁶

However, other studies have complicated this picture. A multicenter study of long-term female survivors found no significant quality-of-life differences between the two groups except that neobladder patients reported more financial difficulties.¹⁷ Another long-term comparison found that conduit patients actually reported better urinary function scores, while neobladder patients had higher sexual function scores but were also more bothered by sexual difficulties.¹⁸ The takeaway from this research, taken together, is that there is no single “better” option. A conduit is simpler and involves less daily effort once you adapt to the external bag. A neobladder avoids the visible stoma and external appliance, but introduces a longer learning curve, nighttime leakage, potential catheterization needs, and ongoing vigilance about mucus and metabolic issues.

Infection Risks Across All Three Options

Urinary tract infections are a persistent concern regardless of which diversion you have. Any time intestinal tissue contacts urine, bacteria have an environment they find hospitable. And any form of catheterization, whether through a stoma or the urethra, introduces an opportunity for bacteria to enter the system. A systematic review and meta-analysis of long-term outcomes found that patients with continent cutaneous reservoirs had a somewhat higher risk of UTIs compared with those who had an ileal conduit.¹⁹ For neobladder patients, the risk of infection is closely tied to how well they empty: stagnant residual urine is an invitation for bacterial growth, which is another reason complete emptying is so heavily emphasized in post-surgical education.

Recognizing a UTI can also be trickier after a diversion. The classic signs, like burning during urination, may not apply the same way. With a conduit, there is no urination at all. With a neobladder, you lack the normal nerve signals that produce that burning sensation. Cloudy urine, increased mucus, fever, flank pain, or foul odor are often the more reliable indicators. Patients learn to pay attention to these subtler cues rather than waiting for the familiar symptoms they knew before surgery.

Incontinence and Why It Happens

When neobladder patients experience persistent incontinence, the underlying cause is not always the same. A study evaluating incontinent neobladder patients found that about two-thirds had a storage problem, meaning either the reservoir itself was not holding urine well or the sphincter was not sealing adequately. About a quarter actually had a failure-to-empty problem, where incomplete voiding led to overflow leakage. A smaller group had elements of both.²⁰ Distinguishing between these causes matters because the treatments are different. Storage problems may respond to pelvic floor training or medication, while emptying problems call for catheterization. Getting the right diagnosis through urodynamic testing, rather than just living with leakage, makes a real difference in outcomes.

Living with a Stoma and External Bag

For all the attention given to neobladders, the ileal conduit remains the workhorse of urinary diversion and is still the option most patients receive. The external pouching system has improved substantially over the decades. Modern bags are flat, flexible, and designed to be invisible under clothing. They attach to the skin around the stoma with medical-grade adhesive flanges that can stay in place for several days before needing to be changed.

The daily routine involves emptying the pouch when it is about a third full, usually by draining it into a toilet. At night, many conduit patients connect the pouch to a bedside drainage bag so they can sleep without interruption. Stoma care involves keeping the surrounding skin clean and dry, watching for irritation from the adhesive, and making sure the pouch fits snugly to prevent leaks. Most patients become proficient at this within a few weeks of surgery, though it takes longer to feel emotionally comfortable with the change. Specialized stoma nurses, called wound, ostomy, and continence nurses, provide hands-on training and ongoing support.

Swimming, exercising, traveling, and intimacy are all possible with a conduit. Practical challenges tend to center on finding the right pouch system for your body shape, managing skin irritation, and adjusting clothing preferences. Some people find the external bag psychologically difficult to accept, while others prefer its simplicity and reliability over the uncertainty of whether a neobladder will work as hoped.

How the Choice Gets Made

Not everyone is a candidate for every type of diversion. A neobladder requires a functioning urethra and adequate sphincter, so if the cancer has invaded the urethra or the sphincter is compromised, the option is off the table. Kidney function needs to be adequate, since the metabolic demands of an intestinal reservoir are higher. Patients with significant bowel disease, severe liver problems, or limited manual dexterity (which would make self-catheterization difficult) may be steered toward a conduit. Cognitive function matters too: managing a neobladder or continent pouch requires consistent self-care routines, and a patient who cannot reliably follow a timed voiding or catheterization schedule faces serious complications.

Age alone is not a disqualifier for a neobladder, but older patients do tend to have more difficulty with nighttime continence and emptying efficiency. The decision is best made as a collaborative conversation between the patient, the urologic surgeon, and often an ostomy nurse, weighing the cancer situation, the patient’s anatomy, their lifestyle priorities, and their realistic ability to manage the chosen diversion over the long haul.