Cancer occurs when something goes wrong with this system, causing uncontrolled cell division and growth. Colon cancer is cancer of the large intestine (colon), the lower part of your digestive system. Most cases of colon cancer begin as small, noncancerous (benign) clumps of cells called adenomatous polyps. Rectal cancer is cancer of the last 6 inches of the colon. Together, they’re often referred to as colorectal cancers.
Colorectal cancer is the second most common cancer killer overall and third most common cause of cancer-related death in the United States in both males and females. Who is at risk for colorectal cancer. Men tend to get colorectal cancer at an earlier age than women, but women live longer so they catch up with men and thus the total number of cases in men and women is equal. Women diagnosed with uterine or ovarian cancer before age 50 are at increased risk of colorectal cancer. Woman with a personal history of breast cancer have only a very slight increase in risk of colorectal cancer. The average age to develop colorectal cancer is 70 years, and 93% of cases occur in persons 50 years of age or older. You have a higher risk for colon cancer if...