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Bladder Enlargement (Augmentation) Surgery

  • فارسی افغانستان PDF
  • Español PDF

Bladder augmentation surgery makes your child’s bladder bigger. This handout explains what to expect if your child needs this surgery.

What is bladder augmentation surgery?

We add a tissue patch on the bladder to make it bigger. To make the patch, we use tissue from your child’s stomach, intestine or the tubes that connect the kidney to the bladder (ureters). Sometimes loosening the outside muscle of the bladder will also expand it.

Why does my child need an augmentation?

A bigger bladder helps your child hold more pee (urine) for a longer time. It also reduces the pressure inside the bladder.

How do I prepare my child for surgery?

We may put your child on a special diet of only clear liquids 1 to 3 days before surgery. Most children check into the hospital the day before or on the morning of the surgery and stay for 5 to 7 days. You will receive instructions on how to prepare your child.

Will my child be in pain?

Most of the stomach area will be numb from the pain medicine. After a surgery your child is likely to have some pain and discomfort. In most cases, we give pain medicine through a tube in your child’s vein (IV or intravenous). Sometimes, we give pain medicine through a small tube placed in the spine area, called an epidural catheter. The epidural will stay in place for days after surgery, until your child can take pain medicine by mouth.

You know your child best. We encourage you to take an active part in your child’s recovery by talking with your care team about options for your child. In addition to medicine prescribed for pain, we will work with you to create a plan that encourages coping activities to treat pain and provide support. No matter the level of your child’s pain, we join you to assess and respond right away. Help your child get better, faster with good pain treatment.

What should I expect after surgery?

Tubes (catheters)

Your child will have 2 or 3 catheters in place after surgery. One will drain from the bladder area into a urinary drainage bag. We may place another in your child’s urethra, where pee comes out. If your child had a Mitrofanoff surgery, a catheter will drain from the belly button. The third (called a JP or Jackson-Pratt drain) will drain into the belly. Except for the JP catheter, you will need to keep these catheters in place for 3 to 6 weeks at home.

Medicines

We may give your child medicines after surgery, such as:

  • Antibiotics to take before each catheter removal to help prevent a urinary tract infection (UTI)
  • Oxybutynin to help decrease bladder spasms
  • Petroleum jelly (Vaseline) to apply around catheter sites

Irrigating the bladder

We will rinse the inside of the bladder (bladder irrigation) during the hospital stay, and you will need to do it at home. This process flushes out the bladder and removes mucus. Mucus could clog the catheters and lead to infection and bladder stones. This will be part of your child’s daily routine for the rest of their life.

You put sterile saltwater (saline) into the bladder through a catheter and let it drain back out or draw it out with a syringe.

How do I care for my child at home?

Your child can likely go back to regular activity once the catheters are removed. Your nurse will teach you all you need to know to care for your child at home. You and your child may need to come into the clinic once a week until the urinary catheters have all been removed. The doctor (urologist) will give you a plan for any care needed after that. Your urologist may recommend cystoscopies every few years in older children, and in adults with bladder augmentations. A cystoscopy uses a tiny camera to look into the bladder through the urethra.

Where can I learn more?

Read our handouts below.

  • “Mitrofanoff Channel”
    seattlechildrens.org/pdf/PE208.pdf
  • “Cystoscopy: Care After Procedure”
    seattlechildrens.org/pdf/PE016.pdf
  • “Enhanced Recovery Program After Surgery”
    seattlechildrens.org/pdf/PE3475.pdf
  • “Suprapubic and Mitrofanoff Catheter Care”
    seattlechildrens.org/pdf/PE2040.pdf

Who do I call if I have questions?

  • Monday to Friday, call the Urology clinic at 206-987-2509 for questions or concerns. Send MyChart messages for non-urgent questions.
  • Nights, weekends and holidays, call 206-987-2000 and ask for the urology resident on call for urgent concerns.

To Learn More

  • Urology
    206-987-2509
  • Ask your child’s healthcare provider
  • seattlechildrens.org/patient-education

Free Interpreter Services

  • In the hospital, ask your nurse.
  • From outside the hospital, call the toll-free Family Interpreting Line, 1-866-583-1527. Tell the interpreter the name or extension you need.
Seattle Children's Hospital

Seattle Children’s offers free interpreter services for patients, family members and legal representatives who are deaf or hard of hearing or speak a language other than English. Seattle Children’s will make this information available in alternate formats upon request. Call the Family Resource Center at 206-987-2201. This handout has been reviewed by clinical staff at Seattle Children’s. However, your needs are unique. Before you act or rely upon this information, please talk with your healthcare provider.

© 2026 Seattle Children’s, Seattle, Washington. All rights reserved.

02/01/2024
PE306
Patient and Family Education | Urology

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