1. Identify and describe the common causes for a change in bowel habit including colorectal cancer, diverticular disease, bowel obstruction, and gastroenteritis. 2. Analyze patient symptoms and case studies to detect indications of significant changes in bowel habits that might signal potential gastrointestinal issues. 3. Understand and explain the complications associated with diverticular disease and their management. 4. Compare the different types of bowel obstructions, their causes, and the appropriate treatment for each type. 5. Recognize and discuss the signs, symptoms, and treatment options for colorectal cancer and gastroenteritis.