Bleeding from the rectum is a very common symptom, which can occur for many different reasons. It may arise from an anal condition such as haemorrhoids or an anal fissure, but sometimes occurs due to a polyp or cancer in the bowel or as a result of other conditions such as inflammatory bowel disease or diverticular disease.
Although many types of rectal bleeding are not serious, it is important not to ignore bleeding. Investigations such as colonoscopy are often recommended to determine the cause of the bleeding. Patients taking anticoagulant medications like aspirin, clopidogrel or warfarin are more likely to bleed but should still be investigated thoroughly.