This case study discusses the symptoms, aetiology, and diagnosis of chronic abdominal diseases like ulcerative colitis and colon cancer. The patient, Mr. Jackson, has lower abdominal pain, bloody stools, and diarrhea, which are key symptoms of ulcerative colitis. The study also explores the factors that influence the formation of colon cancer and the methods to detect it. The article is relevant to medical students and researchers studying gastroenterology and related fields.