proctologist with a magnifying glass in his hand showing rectum pathologies on an anatomical model

abscess acute anal anatomical anatomy anus arm bacteria body cancer care colitis colon colonoscopy coloproctology colorectal constipation diagnosis diagnostics diestion disease doctor erosions exam examination glass health healthcare hemorrhoid hospital human illness inflamed magnifying model pain pathologies pathology patient physiology polyp proctologist rectal rectum showing structure symptoms treatment vascular vertical