The gold standard test for colorectal cancer screening and actual prevention of colorectal cancer is the colonoscopy procedure. However for average-risk patients without inflammatory bowel disease, a personal history of colon polyps or colon cancer, or family history of colon cancer, there are a few types of at-home screening tests that (while not perfect) may help lead to the diagnosis of colorectal cancer if done properly. Generally, a frank discussion between you (the patient) and your healthcare provider should be held when deciding which screening test would be the best one for you.