is a test used to detect small amounts of hidden blood in the stool that are not visible to the naked eye.
Read moreis a laboratory test designed to detect hidden (occult) bleeding from the gastrointestinal tract. Such bleeding may result from conditions like stomach ulcers, hemorrhoids, colitis, or benign and malignant tumors. This test is especially valuable for the early detection of colorectal cancer, since even very small amounts of blood not visible to the naked eye can be identified.