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External radiotherapy

External radiotherapy uses high energy waves similar to x-rays to destroy cancer cells. Read about how your radiotherapy is planned, how you have it and the possible side effects. 

Planning radiotherapy for prostate cancer

Find out what happens at your planning appointment for external radiotherapy.

External radiotherapy for prostate cancer

Find out about what happens when you have external radiotherapy for prostate cancer.

Side effects of external radiotherapy

Radiotherapy to the prostate can cause some side effects, such as loose or watery poo (diarrhoea) and passing wee (urine) more often.  

Long term side effects of external radiotherapy

You might have long term side effects after having external radiotherapy for prostate cancer, such as erection problems (impotence). Find out what you can do about them. 

Last reviewed: 
11 Jun 2019
Coronavirus and cancer

We know it’s a worrying time for people with cancer, we have information to help.

Read our information about coronavirus and cancer