What is the symptoms for colon cancer?

Colon Cancer: Possible Sx's /Signs of colon cancer: Blood in stool, change in feces (loose stool/ constipation/ etc.), abdominal pain, cramps, gas, weight loss, weakness, incomplete evacuation of bowel. See: http://www.mayoclinic.org/diseases-conditions/colon-cancer/basics/symptoms/con-20031877

Colon cancer: 1.Bleeding from rectum- may or may not be visible 2.Passing mucus with the faeces 3.A change from your usual bowel habit 4.A feeling of not fully emptying the rectum after passing faeces 5.Tummy (abdominal) pains. 6.If the cancer becomes very large, it can cause a blockage (obstruction) of the colon 7. loss of appetite and weight loss in later stages.