According to the National Cancer Institute, colon cancer is the third most commonly diagnosed cancer, affecting more than 132,700 Americans and killing nearly 50,000 in 2015 alone. While these numbers have declined in recent years, the Centers for Disease Control and Prevention released research showing that if all precancerous polyps were identified and removed before becoming cancerous, the number of new colorectal cancer cases could be reduced by 76 to 90 percent.