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Gastrointestinal bleeding in competitive runners.

R L Fisher, L F McMahon, M J Ryan

    Digestive Diseases and Sciences
    |November 1, 1986
    PubMed
    Summary
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    Competitive runners may experience runner's anemia, a type of iron-deficiency anemia linked to gastrointestinal bleeding. This study highlights cases where bleeding occurred without clear gastrointestinal issues, impacting athletic performance.

    Area of Science:

    • Sports Medicine
    • Gastroenterology
    • Hematology

    Background:

    • Runner's anemia, a form of iron-deficiency anemia, is a recognized condition in competitive athletes.
    • Gastrointestinal bleeding is a potential contributing factor to this anemia.
    • While occult bleeding is common post-marathon, significant bleeding incidence remains unclear.

    Observation:

    • Four competitive runners presented with iron-deficiency anemia.
    • Gastrointestinal bleeding episodes were temporally associated with their running activities.
    • Extensive evaluations failed to identify specific gastrointestinal pathologies in these athletes.

    Findings:

    • The cases suggest a link between intense running and unexplained gastrointestinal bleeding leading to anemia.

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  • Runner's anemia can manifest with significant bleeding despite the absence of identifiable gastrointestinal disease.
  • This highlights a potential underdiagnosed issue in endurance athletes.

    • Implications:

    • Further research is needed to elucidate the mechanisms of gastrointestinal bleeding in runners.
    • Clinicians should consider gastrointestinal bleeding as a cause of anemia in athletes presenting without obvious pathology.
    • Early diagnosis and management are crucial for maintaining the health and performance of competitive runners.