Pain. A large colon polyp can partially obstruct your bowel, leading to crampy abdominal pain. Iron deficiency anemia. Bleeding from polyps can occur slowly over time, without visible blood in your stool.

Can polyps bleed and not be cancer?

Are They Cancerous? Bleeding Colon polyps don't usually turn into cancer, though bleeding colon polyps might be an early sign of colon cancer.

Does bleeding from colon cancer come and go?

Typically, patients with hemorrhoids experience symptoms that come and go with flare-ups, whereas rectal bleeding caused by cancer usually continues or worsens and is more likely to be accompanied by pain.