An ileal conduit is a surgically created pathway that reroutes urine out of your body after your bladder has been removed. A short segment of your small intestine is repurposed into a tube that connects your ureters (the tubes from your kidneys) to an opening in your abdomen called a stoma. Urine drains continuously through this opening into a small external pouch you wear against your skin. It is the most common form of urinary diversion and has been used for decades, primarily after bladder removal for cancer.
Why an Ileal Conduit Is Needed
The most common reason for an ileal conduit is muscle-invasive bladder cancer that requires complete removal of the bladder (radical cystectomy). Once the bladder is gone, urine still flows from the kidneys and needs somewhere to go. The ileal conduit provides that exit route. Less frequently, the procedure is performed for people with severe neurogenic bladder conditions, radiation damage to the bladder, or other situations where the bladder can no longer safely store urine.
Surgeons often choose the ileal conduit for older patients or those with other health conditions because it is technically simpler and has a shorter operative time compared to alternatives like a neobladder. For patients whose primary goal is the shortest possible surgery with the fewest immediate risks, this is typically the recommended option.
How the Surgery Works
The procedure is performed under general anesthesia and usually takes four to six hours, though it can run longer depending on your surgical history and overall health. The surgeon isolates a roughly 15-centimeter (about 6-inch) segment from the ileum, which is the last portion of the small intestine, selecting a section about 15 centimeters away from where the small and large intestines connect. The remaining intestine is then reconnected so digestion continues normally.
Next, the ureters are detached from the removed bladder and sewn into the isolated intestinal segment. There are two main techniques for this connection. In one approach, each ureter is attached to the side of the conduit at slightly different spots. In the other, both ureters are joined together first and then connected to the open end of the intestinal segment. Small temporary stents may be placed to keep the connections open while they heal. The far end of the conduit is brought through the abdominal wall to create the stoma, a small pink, moist opening usually located on the right side of the abdomen.
What the Stoma and Pouch Look Like
The stoma is typically round, about the size of a quarter to a half-dollar, and sits flush with or slightly above the skin surface. It has no nerve endings, so it doesn’t hurt. Because there’s no valve or muscle controlling it, urine flows out continuously in small amounts, which is why an external collection pouch is always worn.
The pouching system has two key parts: a wafer (also called a flange), which is a flat adhesive piece that sticks to the skin around the stoma, and the pouch itself, which snaps or seals onto the wafer. Some systems combine both into a single piece. You empty the pouch throughout the day using a small drain valve at the bottom and typically change the entire pouching system once or twice a week. At night, many people connect the pouch to a larger bedside drainage bag so they don’t need to wake up to empty it.
Recovery After Surgery
Most people spend about a week in the hospital after the procedure, though this varies. During that time, a stoma nurse will begin teaching you how to care for your pouch, clean the skin around the stoma, and recognize signs of problems. The learning curve is real but manageable. Most people feel confident handling their pouch independently within a few weeks.
Full recovery from the surgery itself generally takes six to eight weeks. During that time, you’ll gradually return to normal activities, starting with short walks and light movement in the first days and working up to more demanding tasks as your body heals. Your bowel function may be sluggish initially because the intestine needs time to recover from being handled during surgery.
Long-Term Complications to Know About
Living with an ileal conduit is safe and sustainable for most people, but it does carry long-term risks that require ongoing monitoring. A large study of over 1,000 patients found that bowel-related complications were the most common, affecting about 20% of patients over time. Kidney problems occurred at a similar rate (20%), followed by infections (16.5%), stoma-related issues (15.4%), and kidney stones (15.3%).
Parastomal hernias, where tissue pushes through the abdominal wall next to the stoma, are particularly common. Studies report they occur in 30 to 50% of patients over time. Many are small and painless, but some require surgical repair. Stomal issues like skin irritation from the adhesive, changes in stoma size, or leakage around the wafer are everyday concerns that stoma nurses can help you troubleshoot.
Kidney Health Over Time
One of the more important long-term considerations is kidney function. Research shows that about 59% of ileal conduit patients develop some degree of chronic kidney disease over time, compared to roughly 18% in the general population of the same age. Kidney function declines at about three times the normal rate, losing approximately 1 ml/min per year of filtering capacity versus the expected 0.3 ml/min per year.
The biggest risk factors for kidney decline are high blood pressure, kidney stones, and any history of blockage causing the kidney to swell (hydronephrosis). Regular blood work and imaging to monitor kidney function are a standard part of follow-up care after an ileal conduit, and managing blood pressure becomes especially important.
How It Compares to a Neobladder
The main alternative to an ileal conduit is an orthotopic neobladder, where a larger section of intestine is shaped into an internal pouch that connects to the urethra, allowing you to urinate somewhat naturally without an external bag. About 90% of neobladder patients achieve daytime continence, though nighttime leakage is more common, with only about 70% staying dry overnight. Some studies suggest neobladder patients report better body image and quality of life scores.
The tradeoff is real, though. A neobladder is a longer, more complex surgery with a steeper learning curve. You have to retrain yourself to void using abdominal pressure rather than the normal urge, and some patients, particularly women, end up unable to fully empty the new bladder and need to self-catheterize. Neobladders also carry a higher risk of metabolic complications like chronic acid buildup in the blood and vitamin B12 deficiency, because more intestinal tissue is exposed to urine for longer periods.
Neither option is universally better. The choice depends on your cancer stage, overall health, body type, and personal priorities. If avoiding an external bag matters most to you, a neobladder may be worth the added complexity. If you want a shorter operation with a more predictable recovery, the ileal conduit is the more straightforward path.
Daily Life With an Ileal Conduit
Most people return to their normal routines, including work, travel, swimming, and exercise, after recovering from surgery. Modern pouching systems are flat, discreet under clothing, and waterproof. You can shower with or without the pouch on. The intestinal lining of the conduit naturally produces some mucus, which you’ll notice mixed with your urine. This is normal and not a sign of infection. Staying well-hydrated helps keep mucus thin and reduces the chance of blockage.
Urine output looks different than before surgery. It flows continuously rather than being stored and released, so keeping the pouch emptied regularly (every two to four hours or when it’s about one-third full) prevents leaks and keeps the adhesive seal intact. Most people develop a quick, efficient routine and report that pouch management becomes second nature within a few months.