You might have side effects such as diarrhoea and bladder irritation if you're having radiotherapy to the pelvic area (area in between your hips) or abdomen (tummy).
This page is about short term side effects.
It is normal to have diarrhoea during or after radiotherapy to your abdomen or pelvis. You might also have stomach cramps and wind.
Radiotherapy to the abdomen can make you feel and be sick. This might last for a few weeks after the treatment. This sickness may cause you to lose weight.
Having radiotherapy to the pelvis might affect your bladder and make you feel as though you need to pass urine more than usual. Find out about what you can do to help with this.
You might have pain after radiotherapy to the pelvis. This can happen some time after your radiotherapy has finished.
Radiotherapy to your lower abdomen or pelvis can affect your fertility and sex life.
Radiotherapy to your lower abdomen or pelvis can affect your fertility and sex life. Problems can include pain during ejaculation and difficulty getting an erection.