The following disorders of the anus can cause mucus to appear on the stool, along with red blood, according to Austin, Texas gastroenterologist, Harry Thomas, MD: Anal fissure, which is a split or ...

Rectal discharge, or anal discharge, can appear as anal mucus, pus, or blood in stools or underwear. There are many possible causes of rectal discharge, including gastrointestinal conditions ...

Fatigue - or a general feeling of weakness - can also be a sign of bowel cancer. "It may be caused by internal blood loss, a lack of red blood cells, or the fact that the cancer itself uses up a lot ...