Q. What does a negative FIT result mean?
A. A negative result indicates that human hemoglobin was not present in the collected samples. Colorectal lesions, including some polyps and colorectal cancers, may bleed intermittently, or not at all. In some cases, even when blood or lower gastrointestinal disease is present, blood may not have been evenly distributed in or on the stool, and a test result may be negative. A FIT is used for preliminary screening and does not replace diagnostic procedures like colonoscopy.