Urinary Diversion

A urinary diversion is a reconstructive operation that creates a new pathway for urine to leave the body when the bladder is removed, non-functional or being bypassed. It is most commonly performed after cystectomy (bladder removal) for cancer, or for severe non-cancer conditions such as radiation damage, intractable incontinence, complex fistulae or chronic pain. Different types of diversion suit different patients — the main options are ileal conduit, neobladder, and Mitrofanoff-type continent cutaneous diversion.

There are three main types. An ileal conduit is the most common and simplest — a short piece of small bowel is used to bring the ureters to a stoma on the abdominal wall, which drains into an external bag. A neobladder is a new bladder formed from bowel and connected to the urethra, allowing bladder emptying by intermittent catheterisation through the urethra without a stoma. A continent cutaneous diversion (Mitrofanoff) creates an internal reservoir with a small stoma that is emptied by intermittent catheterisation, without an external bag when native urethral catheterisation is not possible.

The choice depends on several factors including the reason for surgery, whether the urethra can be preserved, your age and overall health, kidney and liver function, previous abdominal surgery, manual dexterity, lifestyle and personal preferences. Not every option is suitable for every patient, and detailed pre-operative counselling with the reconstructive urology team, specialist stoma nurses and often other patients who have had the operation is essential to making the right decision.

Most patients adjust well to life with an ileal conduit over the first 3 to 6 months. The stoma drains continuously into a small, discreet bag worn under clothing, which is emptied several times a day and changed every 2 to 3 days. There are no dietary restrictions specific to the stoma, and most people return to work, exercise, travel and normal social activities. Specialist stoma nurse support is available at every stage, and there are active national patient support groups.

A neobladder is possible for many patients but not everyone. It requires the urethra to be preserved (so is generally not offered when there is cancer close to the urethra), good kidney and liver function, adequate motivation and dexterity to learn a new catheterisation routine, and reasonable overall health. Neobladders allow voiding through the urethra without an external bag, but require active management including timed voiding with self-catheterisation.

A Mitrofanoff (continent cutaneous urinary diversion) creates an internal urinary reservoir made from bowel or the enlarged bladder, connected to a small, dry stoma on the abdominal wall — often placed in the umbilicus. The stoma is closed by a one-way valve, and the reservoir is emptied four to six times a day by passing a soft catheter through the stoma. There is no external bag, no need for the urethra, and it is a valued option for patients with complex neurogenic bladder or those who wish to avoid an external appliance.

Urinary diversion is major surgery, typically requiring 7 to 10 days in hospital and 6 to 12 weeks to return to most normal activities. Full functional recovery, especially with a neobladder, can take 3 to 6 months. The immediate post-operative period focuses on wound healing, restoring bowel and kidney function, and learning to manage the stoma or new voiding routine. Longer-term follow-up includes regular monitoring of kidney function, vitamin B12 levels, and the health of the urinary tract.

Yes. Most patients return to a good quality of life after urinary diversion. Work, exercise, swimming, travel, intimacy and social activities are all possible with any of the three diversion types once recovery is complete. Body image concerns are natural and are addressed with specialist stoma nurse support, peer-support groups and access to psychological services where needed. Long-term outcomes at 10 to 20 years are excellent for the great majority of patients.