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.
Related Articles
Read article
Urology
Treating Urinary Incontinence: Urethral Implants

Urethral implants (bulking agents) are one way to help treat incontinence due to a weak sphincter. Read on for details.

Read article
Urology
Bladder Cancer: Treatment Questions

Here are some questions to ask your healthcare providers about treatment for bladder cancer.

Read article
Urology
Robotic Pyeloplasty

Robotic pyeloplasty is a surgery that is done to fix a blockage (obstruction) where the kidney connects to the ureter.

Read article
Urology
Transurethral Resection of Bladder Tumor

Transurethral resection of bladder tumor is done to help find the cause of a bladder problem, such as bladder cancer. During the procedure, small tissue samples are taken from the inside of your bladder. The samples are then tested in a lab. This sheet explains how the procedure is done.