COLOGUARD is the first stool-based, at home, colorectal screening test that detects the presence of red blood cells and DNA mutations in the stool. This may indicate the presence of certain kinds of abnormal growths that may be colon cancer or precursors to cancer. The question is: How Well Does Cologuard Really Work? About 40% of people who need to be screened for colon cancer never do. Could this test be an answer? Join Lindsay and Dr. Bill Blanchet and get the answer.