Could You Have Anal Cancer? 10 Symptoms to Watch Out For

4. Changes in Bowel Movements

The color, consistency, and frequency of an individual's bowel movements are clues to their overall health. These factors can indicate issues with the liver, an obstruction in the bowels, or they can be symptoms of other conditions, including cancer. An increased number of bowel movements is an early symptom of anal cancer. Those who experience strained bowel movements, or notice that their stools are narrower than normal should consult a medical professional. Dark or red blood in the stool can be a symptom of anal cancer, as well. Fecal incontinence, bloating, and recurring diarrhea require further evaluation.