A large number of people receive abdominal and or pelvic radiotherapy as part of their cancer treatment with 60–80% experiencing gastrointestinal symptoms. This is used in standard therapeutic regimens for cervical cancer, prostate cancer, rectal cancer, anal cancer, lymphoma and other abdominal malignancies. Symptoms can be made worse by the effects of surgery, chemotherapy or other drugs given to treat the cancer. Improved methods of radiotherapy have reduced the exposure of non-involved tissues to<unk> , concentrating the effects on the cancer. However, as the parts of the intestine such as the ileum and the rectum are immediately adjacent to the cancers, it is impossible to avoid some<unk>  effects. Previous intestinal surgery, obesity, diabetes, tobacco smoking and vascular disorders increase the chances of developing<unk> .
Radiation enteropathy
Radiation colitis
Chemical colitis
Collagenous colitis
Microscopic colitis
Environmental enteropathy
Lymphocytic colitis
Diversion colitis