- Home
- About Cancer
- Cancer treatment
- Radiation therapy
- Managing radiation therapy side effects
- Bladder changes
Bladder changes
Radiation therapy to the abdomen or pelvic area can irritate the bladder or, more often, the urethra (the tube that carries urine from the bladder to the outside of the body).
Learn more about:
- Cystitis
- Urinary incontinence
- Ways to manage bladder changes
- Video: Pelvic floor exercise for females and males
Cystitis
You may have some stinging when you pass urine or feel you want to pass urine more often and more quickly. This is called cystitis. Symptoms usually ease within 3 months of finishing radiation therapy.
Urinary incontinence
Incontinence is when urine leaks from your bladder without your control. After radiation therapy, you may need to pass urine more often or feel as if you need to go in a hurry. You may leak a few drops of urine when you cough, sneeze, laugh or strain. Sometimes radiation can narrow the urethra, causing permanent incontinence.
Ways to manage bladder changes
- Strengthening the pelvic floor muscles can help with bladder control. Ask your doctor for a referral to a continence nurse or physiotherapist, or contact the National Continence Helpline on 1800 33 00 66 and watch the video below.
- Let your treatment team know if you have bladder or urinary problems, as they will be able to suggest strategies and may recommend medicines. To help manage these side effects, drink plenty of fluids, limit strong coffee and tea, and avoid drinking alcohol.
The blood vessels in the bladder and bowel can become more fragile after radiation therapy. This may mean you see blood in your urine or bowel motions, even months or years after treatment. Always let your doctor know if you notice new or unusual bleeding.
Video: Pelvic floor exercise for females and males
Podcast for people affected by cancer
Listen now
More resources
A/Prof Susan Carroll, Senior Staff Specialist, Radiation Oncology, Royal North Shore Hospital, and The University of Sydney, NSW; Katie Benton, Advanced Dietitian Oncology, Sunshine Coast Hospital and Health Service, QLD; Adrian Gibbs, Director of Physics, Radiation Oncology, Princess Alexandra Hospital Raymond Terrace, QLD; Sinead Hanley, Consumer; Dr Annie Ho, Radiation Oncologist, GenesisCare, Macquarie University Hospital and St Vincent’s Hospital, NSW; Angelo Katsilis, Clinical Manager Radiation Therapist, Department of Radiation Oncology, Royal Adelaide Hospital, SA; Candice Kwet-On, 13 11 20 Consultant, Cancer Council Victoria; Jasmine Nguyen, Radiation Therapist, GenesisCare Hollywood, WA; Graham Rees, Consumer; Nicole Shackleton, Radiation Therapist, GenesisCare Murdoch, WA; Dr Tom Shakespeare, Director, Cancer Services, Mid North Coast Local Health District, NSW; Gabrielle Vigar, Nurse Lead, Cancer Program, Royal Adelaide Hospital and Queen Elizabeth Hospital, SA.
View the Cancer Council NSW editorial policy.
View all publications or call 13 11 20 for free printed copies.