FOB - Fecal Occult Blood Testing
It has been proven that screening test of stool specimen for detecting fecal
occult blood effectively detects colorectal cancer at its early stage.
FOB tests are usually done as part of routine examination, especially for
people after the age of 50, or as directed by your doctor. Most
people who have them done do not have any symptoms. They are used
mainly as a screening tool for early detection of cancer.