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Radiation Therapy and Urinary Function

The prostate gland is located just below the bladder. It also surrounds the urethra, the tube through which urine passes out of the body. It follows that all treatments for prostate cancer can affect the urinary system.

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Updated 1 month ago

Short-Term Side Effects

These side effects typically occur during or shortly after radiation therapy. They are more common, tend to be temporary, and may last for a few weeks to a few months. You may experience irritation during urination, and increased frequency and urgency to urinate. These urinary side effects are typically managed with over-the-counter nonsteroidal anti-inflammatory drugs such as ibuprofen, or prescription drugs such as tamsulosin.

 

Long-Term Side Effects

These may develop months or even years after completing radiation therapy. You may develop scar tissue which narrows the urethra, leading to a slower urinary stream and frequent urination. Bladder irritation or cystitis may also occur with episodes of bleeding, reduced bladder capacity and changes in bladder elasticity. They are rare complications but do happen and may require additional treatment.

 

Most men tolerate treatment well without significant side effects and return to normal activities after radiation therapy.