Answer:
Clinical Manifestations
[8] Patients with intestinal radiation exposure often experience nausea, vomiting, diarrhea, and abdominal pain, and, in severe cases, can develop fistulas or intestinal obstructions.Radiation therapy to the pelvic area can damage the lining of the rectum, causing inflammation and swelling known as radiation proctitis. This can cause a range of symptoms including blood and mucus in bowel motions; discomfort opening the bowels; or the need to empty the bowels often, perhaps with little result.
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