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Running can cause bloody urine in men, potentially linked to the bladder neck or urethra and low animal protein diets. This condition typically has no lasting effects and may not impact female runners.
Area of Science:
- Sports Medicine
- Urology
Background:
- Gross hematuria in runners is a recognized condition.
- The specific etiology and contributing factors require further elucidation.
Purpose of the Study:
- To identify the source of bleeding in male runners experiencing exercise-induced gross hematuria.
- To investigate potential dietary factors contributing to this condition.
Main Methods:
- Study involved 13 male runners presenting with gross hematuria post-exercise.
- Clinical evaluation and diagnostic assessments were performed to localize the bleeding site.
Main Results:
- The urinary bladder neck or posterior urethra were identified as the primary sites of blood loss.
- A diet deficient in animal protein was suggested as a potential causative factor.
- No long-term sequelae were observed in the affected individuals.
Conclusions:
- Exercise-induced gross hematuria in men often originates from the bladder neck or posterior urethra.
- Dietary modifications, specifically increasing animal protein intake, may be beneficial.
- Medical evaluation is recommended for all runners with gross hematuria, with tailored diagnostic and management plans.
Abstract:
A study of 13 men with grossly bloody urine induced by running incriminated the urinary bladder neck or posterior urethra as the site of blood loss. Our evidence also showed that diet lacking in animal protein can play a causative role. The ailment seems to have no long-term sequelae and may not affect female runners. Although we recommend medical evaluation for any runner with gross hematuria, the extent of diagnostic work-up and any modification of the victim's training problem program will depend on the circumstances in each case.