Stool for Occult Blood

Stool Occult Blood Test Overview A stool sample (faeces) can uncover a lot of information regarding issues or problems related to the rectum, stomach, intestines, and other gastrointestinal (GI) system organs. The faecal occult blood test (FOBT), also known as the occult blood test, examines the stool for blood that is not visible to the eye. The presence of blood in the stool is a sign of bleeding in the GI tract, which can be caused by conditions such as ulcer, polyp, and even colon cancer.