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What you need to know about colorectal cancer, its prevention

Jiri Bem, MDColorectal cancer incidence would drop by 90 percent if everyone followed recommendations and underwent a screening colonoscopy starting at age 50, colorectal surgeon Jiri Bem, MD, left, says in this interview. Among cancers that affect both men and women, colorectal cancer is the second leading cause of cancer deaths in the United States. But the disease is highly preventable. Bem goes over the risk factors and symptoms of colorectal cancer, as well as the common treatments.