Tutorials in Postgraduate Medicine: Diseases of the Colon, Rectum, and Anus focuses on the diseases of the rectum, colon, and anus, including diagnosis, diseases in children, and cancer. The selection first offers information on the anatomy of the colon, rectum, and anal canal and physiology. Topics include movements of the colon, description of the movements, colonic mucosa, normal bowel habit, subepithelial tissue of the canal, internal anal sphincter, peritoneal relations, lining of the canal, and anal intramuscular glands. The book then examines clinical diagnosis and use of instruments, including pain, swelling, prolapse, discharge, irritation, abdominal pain, palpation, and biopsy. The manuscript elaborates on radiology and developmental anomalies and diseases in children. Discussions focus on factors hindering defecation in infancy and childhood, loss of blood from the anus, duplications of the distal gut, ano-rectal anomalies, acute toxic dilatation, geometrical features of benign polyps, and gontra-indications. The text then ponders on irritable colon syndrome, polyps and polyposis, cancer of the colon and rectum, colostomy, and ileostomy. The selection is a dependable reference for postgraduates and senior registrars wanting to conduct extensive research on the diseases of the colon, rectum, and anus.