You can not conclude without the scope.
hemorrhoids that bleed...most common.
Diverticulosis, common, pockets in the bowel, these can bleed, and they can cause infection.
Polyps, benign or pre cancerous, so they are removed.
Cancer, not likely but needs to be ruled out.
Colitis, inflammation of the bowel, can be for various reasons from autoimmune
disease to infection or parasites.
No if anyone tells you they can draw a firm conclusion with anything other than a scope, they are not telling you the truth.
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