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6 Silent Symptoms of Colon Cancer You Might Be Missing

Reader's Digest Logo By Alyssa Jung of Reader's Digest | Slide 1 of 7: A bout of constipation here and there is probably nothing to worry about, but if it becomes severe and persistent, it could be one of the symptoms of colon cancer. 'This is something that is suggestive of some sort of obstruction, and if it seems to be there all the time you should get it checked out,' says Dr. Holcombe. Learn some other causes of constipation that aren't colon cancer.

Nearly 140,000 people are diagnosed with colorectal cancer in America. Rectal bleeding is the most obvious colon cancer symptom, but other signs may be far more subtle. If you notice any of the following signs, talk to your doctor.

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