Colon cancer is the second leading cause of cancer deaths in the United States, claiming 56,000 lives each year. Married couples have a one in ten chance that either the husband or wife will develop colon cancer in their lifetime. Men and women are at equal risk for colon cancer. Advancing age increases one's risk, and although most cases occur after age 50, many cases are seen in individuals in their 30's and 40's.
Some polyps are benign, with no potential for developing into cancer.
They can grow and become cancerous if left in place. Physicians trained to perform flexible endoscopy are able to see inside the colon and can remove most polyps with special tools. Patients are given sedation during the exam to lessen anxiety and cramping. Men and women over age 50 should have an annual digital rectal exam with fecal occult blood testing to look for microscopic evidence of blood in the stool. Total colonoscopy every 7 to 10 years is gaining in popularity as an acceptable alternative to flexible sigmoidoscopy.