The impoant symptom of radiation proctitis is:
Bleeding PR
Weight loss
Loss of weight
Colicky abdominal pain
Radiation proctitis can lead to persistent rectal bleeding and iron deficiency anemia. Other symptoms include diarrhea, mucoid discharge, urgency, tenesmus, rectal pain and fecal incontinence. Ref: World J Gastroenterol 2011 November 7; 17(41): 4554-4562.