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Colorectal Cancer - Symptoms

Colorectal cancer in its early stages usually doesn't cause any symptoms. Symptoms occur later, when the cancer may be harder to treat. The most common symptoms include:

  • Pain in the belly.
  • Blood in your stool or very dark stools.
  • A change in your bowel habits. (You may have more frequent stools or a feeling that your bowels aren't emptying completely).
  • Constant tiredness (fatigue).
  • In rare cases, unexplained weight loss.

    This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

    WebMD Medical Reference from Healthwise

    Last Updated: November 14, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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