Gastrointestinal disorders include such conditions as constipation, irritable bowel syndrome, haemorrhoids, anal fissures, perianal abscesses, anal fistulas, perianal infections, diverticular diseases, colitis, colon polyps, and cancer. Many of these can be prevented or minimized by maintaining a healthy lifestyle, practicing good bowel habits, and submitting to cancer screening.
Functional disorders are those in which the gastrointestinal tract looks normal but doesn't work properly. They are the most common problems affecting the gastrointestinal tract. Structural disorders are those in which the bowel looks abnormal and doesn't work properly. Sometimes, the structural abnormality needs to be removed surgically. Common examples of structural gastrointestinal disorders include haemorrhoids, diverticular disease, colon polyps, colon cancer, and inflammatory bowel disease.