Content Men and women who are 50 years of age and older should have the FIT each year. The FIT checks for blood in the stool, which may be a sign of cancer. This test may be done privately at home. If ...
25 in JAMA Network Open. The kit, a fecal immunochemical test (FIT), uses antibodies to detect blood in stool. This blood is an early warning sign of colon cancer, and those who test positive are ...