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Medications and treatments

Don't count on daily aspirin to prevent colon cancer

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By , Executive Editor, Harvard Heart Letter
  • Reviewed by Robert H. Shmerling, MD, Senior Faculty Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing
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A bottle labeled aspirin, with the top on its side next to it and some pills scattered in front of it.

Taking aspirin for five to 15 years did not reduce the number of new cases of colon cancer. Aspirin might reduce new cases of colon cancer when taken for 15 years or longer, but the evidence for that observation was limited. However, aspirin increased the risk of bleeding in the brain and around the skull.

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About the Author

photo of Julie Corliss

Julie Corliss, Executive Editor, Harvard Heart Letter

Julie Corliss has been the executive editor of the Harvard Heart Letter since 2013. She also writes for the Harvard Health Letter, Harvard Women’s Health Watch, and Harvard Men’s Health Watch, as well as for Harvard … See Full Bio
View all posts by Julie Corliss

About the Reviewer

photo of Robert H. Shmerling, MD

Robert H. Shmerling, MD, Senior Faculty Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing

Dr. Robert H. Shmerling is the former clinical chief of the division of rheumatology at Beth Israel Deaconess Medical Center (BIDMC), and is a current member of the corresponding faculty in medicine at Harvard Medical School. … See Full Bio
View all posts by Robert H. Shmerling, MD
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