Runners Warned Against Ignoring Bowel Symptoms — image accompanying Marathon Handbook's report. Image accompanying Marathon Handbook’s report; reduced and presented for news commentary with the attributed report. View the complete source report.
Ciara Mageean, a 34-year-old runner, died from stage four bowel cancer. She initially dismissed her symptoms as typical for athletes. Her story underscores the need for vigilance.
A 2014 review in Sports Medicine found that 30-50% of athletes experience bowel issues. These can include urgency, diarrhea, and bleeding, often due to reduced blood flow and intestinal jolting during runs. Read more culture coverage.
The NHS lists symptoms of bowel cancer, including unexplained weight loss and constant tiredness. Runners should consult a doctor if symptoms persist, as these can be mistaken for training effects. Related: Study Finds Shift in Duty Factor During Long Runs.
This original Runner World brief is based on reporting from Marathon Handbook. Visit the source for its complete reporting, context and any later corrections.
Reader questions
Questions about this report
What should runners know about Runners Warned Against Ignoring Bowel Symptoms?
Marathon Handbook highlights the importance of recognizing bowel changes in runners. Ciara Mageean, a 34-year-old runner, died from stage four bowel cancer. She initially dismissed her symptoms as typical for athletes. Her story underscores the need for vigilance.
When did Runner World publish this culture brief?
Runner World published this brief on November 6, 2026. The underlying Marathon Handbook report was dated November 6, 2026.
Where can readers find the complete original report?
This summary is based on reporting from Marathon Handbook. The attributed source link in the article leads to the publisher’s complete report.
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