Colorectal cancer is generally diagnosed when undergoing a colon cancer screening. A colonoscopy is the most frequently performed, effective, and thorough test for identifying colon and rectal cancer. Further exams, like flexible sigmoidoscopy, virtual colonoscopy, stool tests, and double-contract barium enema, could also be utilized when screening for colorectal cancer. Your Arizona Digestive Health gastroenterologist will recommend the ideal method of screening and diagnosis to address your needs.