HEALTH

Long Runs, Big Challenges: What Female Ultramarathoners Face

USASun Oct 26 2025

Female ultramarathon runners are pushing their limits, but their bodies might be paying a price. These athletes run distances longer than a marathon, often on tough mountain trails. More women are joining in, but not much is known about how this sport affects their health, especially their reproductive system.

Key Findings

  • Irregular Periods: Nearly half of the runners had irregular periods, significantly higher than the average woman.
  • Amenorrhea: About 3 in 10 had stopped getting their periods altogether, more common in runners over 40.
  • Bladder Control: Almost 4 in 10 runners experienced urinary incontinence, higher than the average woman.

Unexpected Discoveries

Neither the number of races run nor previous childbirths seemed to make these problems worse.

Conclusion

These findings show that female ultramarathoners might face unique health challenges. More research is needed to understand and address these issues. It's important for these athletes to be aware of potential health risks and take care of their bodies.

questions

    How might the survey methodology and sample size limit the generalizability of the findings in this study?
    Is it true that female ultramarathon runners have a built-in excuse for missing periods: 'I was too busy running 50 km!'?
    What are the potential confounding variables that could explain the higher rates of irregular menstrual cycles and secondary amenorrhea in female ultramarathon runners?

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