5 Things We Now Know About Colorectal Cancer

It’s never too early to watch out for symptoms.

Colorectal cancer is generally first spotted in the form of polyps, or growths, on the inner lining of the colon or rectum.

The American Cancer Society recommends that all adults begin screening for colon cancer at age 45. The gold standard test is a colonoscopy, during which your doctor uses a flexible, lighted tube to check for polyps in your rectum and colon while you’re under sedation. This should be repeated at least once every 10 years if no abnormal findings are discovered; if you have polyps, you'll need to go in for colonoscopies at shorter intervals.

If you’re younger than that, it’s still important to be watchful for symptoms that a growing body of studies suggest could indicate colon cancer, such as rectal bleeding, or diarrhea or constipation that lasts more than a few days. In fact, according to one study published in the Journal of the National Cancer Institute (NCI), adults born around 1990 have double the risk of colon cancer and quadruple the risk of rectal cancer, compared to those born around 1950.

“We don’t really have a good sense as to why; we suspect rising obesity rates may play a role, as well as diet, but those don’t seem enough to explain it entirely,” says Eduardo Vilar-Sanchez, M.D., Ph.D., associate professor of Cancer Prevention and Population Sciences at The University of Texas MD Anderson Cancer Center in Houston.

In any case, the NCI study found that people younger than 55 are nearly 60% more likely to be diagnosed with late-stage disease than older adults, often because they aren't aware of the symptoms. So if you have any concerning signs of illness, like the ones mentioned, don’t delay in getting them checked out.

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Citation: www.jnj.com

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