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.