A test for fecal occult blood looks for blood in your poop ... Or you may easily see it as red blood, or black tar-like bowel movements. There are different kinds of these tests.
A new study finds that a common blood test for ovarian cancer may miss some Black and Native American patients, delaying ...
It may even be “black and tarry” due to this ... regardless of what the blood looks like. You should also visit your GP if ...