Stool tests are used to identify small traces of blood in feces that are not visible to the naked eye. The tests cannot determine why or what may be causing the bleeding, but only that blood is present in your stool sample.
Besides looking for blood in the stool, the mt-sDNA test also checks for abnormal DNA. If it finds either, you may receive a positive test result. But does a positive stool test mean cancer? No, but you will need a follow-up colonoscopy to determine why the test was positive.
