Rectal bleeding may be hidden and chronic and may only show up as an iron deficiency anemia. It might be associated with fatigue and pale skin due to the anemia.It usually, however, not always, can be detected through a fecal occult blood check, in which samples of stool are submitted to a laboratory for detection of bloodstream.If the tumor gets large a sufficient amount of, it could completely or partially block your colon. You may notice the pursuing symptoms of bowel obstruction:Abdominal distension: Your stomach sticks out more than it did before without excess weight gain.Abdominal pain: That is rare in cancer of the colon.Copeland, M.D., Department of Gynecology and Obstetrics, Ohio State University Comprehensive Cancer Center, Group Vice Seat of the GOG and chair of the GOG-0212 study. ‘This study was designed to investigate whether Opaxio when found in a maintenance setting could keep these women in remission and as a result extend the lives of these patients. We have become pleased to have completed enrollment in this important study.’ Related StoriesMeat-rich diet may increase kidney cancers riskSausages With Antioxidants From Berries TO AVOID CancerMD Anderson research reveals why chemotherapy medications not effective for most pancreatic cancer patients ‘This is a significant achievement for the GOG becoming the biggest maintenance study for sufferers with ovarian cancer ever conducted having enrolled 1,150 individuals,’ stated James A.