Colorectal polyps should be removed because they can become cancerous. These can be easily removed in a doctor's office during a sigmoidoscopy or colonoscopy examination. If not removed, these cancer cells can spread outside of the colon or rectum to the nearby lymph nodes. These cells can also spread to other parts of the body such as the liver and lungs. People who have had one polyp are more likely to develop others, so it is very important they have regular screening check-ups to prevent the start of cancer.
Colorectal cancers are the third most common cancer in men and women.
In 1998, there will be an estimated 131,600 new cases of colorectal cancer and about 56,500 individuals will die from the disease. Like most health problems, colorectal cancer responds best to treatment when it is diagnosed and treated as early as possible, especially before it has a chance to spread outside of the colon. Risk Factors Studies have found that certain factors may increase a person's risk of developing colorectal cancer. Recent studies indicate diet, especially a diet high in fat and low in fiber, may also contribute to the development of colon cancer. Other risk factors include smoking, consumption of alcoholic beverages, and an inactive lifestyle.