Treatment

Understanding Hydrodistention With Cystoscopy

Choose a preferred language


Hydrodistention is a procedure that fills up your bladder with water. It is used to help find out what may be causing your bladder pain. During the procedure, a long, thin tube (cystoscope) is used. It has a lens and a light on one end. This tube helps your doctor see inside your bladder. It is put into your bladder through your urethra. That's the tube that passes urine out of your body.

Cross section of bladder, showing catheter inserted through ureter, releasing water into bladder.


How to say it

Say "HY-droh-dihs-TEN-shun sis-TAW-skuh-pee."


Why hydrodistention with cystoscopy is done

This procedure is done to figure out the cause of bladder pain. It may help diagnose bladder pain syndrome (BPS), also called interstitial cystitis (IC). If you have this health problem, you may feel pain when your bladder fills with urine. You may also need to pass urine more often.

This procedure is also sometimes done to treat BPS. It may be tried if other treatments, such as medicine, don't work.


How hydrodistention with cystoscopy is done

This may be done in a hospital or at an outpatient facility. During the procedure:

  • You are given medicine so you won't feel any pain. It may also make you fall asleep.
  • The doctor puts the cystoscope into your urethra. The scope is gently moved forward into your bladder.
  • Using the cystoscope, your bladder is slowly filled with as much water as possible. This helps find out how much fluid your bladder can hold.
  • Your bladder is then drained and filled again.
  • Your doctor may look at your bladder lining with the cystoscope. They will see if there are any sores or other possible causes for your symptoms.
  • Your bladder is drained.


Risks of hydrodistention with cystoscopy

All procedures have risks. Some possible risks of this procedure include:

  • Infection.
  • Blood in urine.
  • Symptoms getting worse.

Author: Semko, Laura

Online Medical Reviewer: Donna Freeborn PhD CNM FNP

Online Medical Reviewer: Marc Greenstein MD

Online Medical Reviewer: Raymond Kent Turley BSN MSN RN

Date Last Reviewed: 07/01/2023

© 2000-2026 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.

Find a Provider

View Our Directory

Find a Location

View Our Practices
Related Articles
Read article
Urology
Shock Wave Lithotripsy

Shock wave lithotripsy is a treatment that breaks a kidney stone into smaller pieces that are easier to pass. This treatment is also called extracorporeal shock wave lithotripsy (ESWL).

Read article
Urology
Incontinent Urinary Diversion

Urinary diversion is surgery that makes a new way for urine to pass out of the body. It may be needed if the bladder is diseased or damaged. It may also be done if another problem in the body keeps the bladder from working correctly. Learn how the surgery is done.

Read article
Urology
Ureteral Reimplantation Surgery

With ureteral reimplantation surgery, one or both ureters are moved so their connection to the bladder is stronger. Read on to learn details about this surgery.

Read article
Urology
Ureterosigmoidostomy

Ureterosigmoidostomy is surgery that creates a new way for urine to pass out of the body. This may be needed if the bladder has been removed due to problems, such as bladder cancer. Learn about what you can expect before, during, and after the surgery, including your recovery.