Colon malignancy has a good cure rate. The strongest risk factor is the age factor. This disease is more likely developed in the men than women. There is increasing evidence that diet high in calcium can reduce the risk of colorectal malignancy. Colon malignancy is a disease in which malignant cells form in the tissue of the colon. The first six feet of the large intestine are called the large bowel or colon. Age and health history can affect the risk of developing the colon malignancy. The major risk factors are age of 50 or above, family history of the malignancy of the colon or rectum, history of polyps in the colon & history of ulcerative colitis. The symptoms includes constipation, diarrhoea, unsatisfied bowel evacuation, dark blood in the stool, stools are narrower than usual, bloated abdominal discomfort, pain in the abdomen or cramps, weight loss with no known reason, constant tiredness and vomiting.