Rectal Bleeding
Colon cancer may lead to bleeding in the lower part of the digestive passage, and in some cases, in the rectum. Rectal bleeding leads to blood being visible as a separate discharge in the stool. Rectal bleeding is more common in individuals who suffer more bouts of constipation than diarrhea during the disease’s progression. Bleeding in a region above the rectum can change the color of stool to anywhere from a red to a tar-like black.
