What are the symptoms of Rectal Cancer ?
Signs of rectal cancer include a change in bowel habits or blood in the stool. These and other signs and symptoms may be caused by rectal cancer or by other conditions. Check with your doctor if you have any of the following:         -  Blood (either bright red or very dark) in the stool.    - A change in bowel habits.               -  Diarrhea.       -  Constipation.      - Feeling that the bowel does not empty completely.      - Stools that are narrower or have a different shape than usual.             - General abdominal discomfort (frequent gas pains, bloating, fullness, or cramps).    - Change in appetite.    - Weight loss for no known reason.    - Feeling very tired.