Abdominal pain is one clue something could be wrong. Changing bowel movements may be another. Other people might notice blood in their stool. Doctors may chalk that symptom up to hemorrhoids, but for some people, it’s a sign of something more insidious: early-onset colorectal cancer.
That’s also been the experience of Christopher Lieu, a medical oncologist at the University of Colorado Cancer Center in Aurora. “For the last 10 years of my career, all my patients were told, ‘You’re just too young to have colorectal cancer. Don’t worry about it.’” In a June talk at the American Society of Clinical Oncology meeting in Chicago, Lieu noted that, by 2030, colorectal cancer could be the number one cause of cancer death in people ages 20 to 49. “This is a humongous issue,” he said.
Scientists don’t know what’s driving the disease’s increase in younger adults, but they’ve been looking for answers. Recent research is beginning to reveal some hints, though the picture remains murky. . Whereas 59 new cases were diagnosed out of every million younger people at the start of that period, the rate had risen to 72 out of a million by the end.
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