Side effects of radiation therapy
The side effects you experience will vary depending on the dose of radiation and the length of the treatment. Many will be short-term side effects that occur during treatment or within a few weeks of finishing.
Side effects can take several weeks to get better, though some may continue longer. Some side effects from radiation therapy may not show up until many months or years after treatment. These are called late effects.
|Your body uses a lot of energy dealing with the effects of radiation on healthy cells. Tiredness usually builds up slowly during the course of the treatment, particularly near the end. It may last for some time after treatment ends.|
|You may pass urine more often or with more urgency, or with a burning sensation. Try to drink plenty of water to make your urine less concentrated. Bowel motions may be more frequent, urgent or loose (diarrhoea), or you may pass more wind than normal. Less commonly, there may be some blood in the stools. Your treatment team will prescribe medicines to reduce these side effects.|
|skin redness, soreness and swelling||Radiation therapy may make the skin in the treatment area dry and itchy. Occasionally, your skin may look red and peel, like sunburn. The treatment team will recommend creams to use to make you more comfortable.|
|hair loss||If radiation therapy is aimed at your pelvic area, you may lose your pubic hair. This hair may grow back after the treatment ends, but it will usually be thinner. The radiation therapy will not cause you to lose hair from your head or other parts of your body.|
|vaginal discharge||Radiation therapy may cause or increase vaginal discharge. Let your treatment team know if it smells bad or has blood in it. Do not wash inside the vagina with douches as this may cause infection.|
|Radiation can scar the lymph nodes and vessels and stop them draining lymph fluid properly from the legs. This may lead to swelling of the legs. This can occur months or years after radiation therapy.|
|Bladder and bowel changes can also be late effects, appearing months or years after radiation therapy finishes. You may pass urine more often or need to go in a hurry. The movement of waste through the large bowel can become faster, meaning you need to go to the toilet more urgently and more often. It is important to let your doctor know if you have any bleeding or if you have pain in the abdomen and cannot open your bowels.|
|narrowing of the vagina||The vagina may become drier, shorter and narrower (vaginal stenosis), which may make sex and follow-up pelvic examinations uncomfortable or difficult. Your treatment team will suggest strategies to prevent this.|
|menopause||If your ovaries have not been removed, radiation therapy can stop the ovaries producing hormones, which leads to early menopause. Your periods will stop, you will no longer be able to become pregnant and you may have menopausal symptoms.|
|pelvic fracture||In rare cases, radiation therapy to the pelvic area can weaken the bones and cause a fracture. Pelvic fractures are the most common. This may not occur for 2–4 years after treatment.|
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A/Prof Penny Blomfield, Gynaecological Oncologist, Hobart Women’s Specialists, and Chair, Australian Society of Gynaecological Oncologists, TAS; Karina Campbell, Consumer; Carmen Heathcote, 13 11 20 Consultant, Cancer Council Queensland; Dr Pearly Khaw, Consultant Radiation Oncologist, Peter MacCallum Cancer Centre, VIC; A/Prof Jim Nicklin, Director, Gynaecological Oncology, Royal Brisbane and Women’s Hospital, and Associate Professor Gynaecologic Oncology, The University of Queensland; Prof Martin K Oehler, Director, Gynaecological Oncology, Royal Adelaide Hospital, SA; Dr Megan Smith, Program Manager – Cervix, Cancer Council NSW; Pauline Tanner, Cancer Nurse Coordinator – Gynaecology, WA Cancer & Palliative Care Network, WA; Tamara Wraith, Senior Clinician, Physiotherapy Department, The Royal Women’s Hospital, VIC. We also thank the health professionals, consumers and editorial teams who have worked on previous editions of this title.
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