Post-Running Hematuria: Should You Continue Jogging? - Urology

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Hematuria after running?


After running, I experience painless hematuria, but it only occurs immediately after running and returns to normal afterward.
I have undergone examinations including CT scans, cystoscopy, and bladder contrast studies, all of which did not reveal any issues.
I have a history of hypertension and am now confused about whether I should continue running, as I do not experience hematuria when I do not run.
Can you provide me with some advice, doctor?

Jeffrey, 40~49 year old female. Ask Date: 2016/01/10

Dr. Xu Weikai reply Urology


Jeffrey: Hello, I also experience hematuria after running.
Are you very thin, which might prevent your body fat from effectively protecting your kidneys from the impact caused by movement? Repeated kidney movement and impact can lead to hematuria.
Additionally, do you experience lower back pain while running? If so, it could be related to a floating kidney, which can also cause hematuria.
If all your tests come back normal, I personally wouldn't worry too much about it.
Note: If it is very bothersome, you could consider gaining weight or using a corset to stabilize the kidneys.
If there are any unclear points, feel free to ask again, and we can discuss and research further.
Online responses should only be used as a reference; if necessary, you should seek medical attention at a healthcare facility.
This message is from Dr.
Hsu Wei-Kai, Director of the Urology Department at Taitung Hospital, Ministry of Health and Welfare.

Reply Date: 2016/01/10

More Info


Experiencing hematuria (blood in urine) after running can be concerning, especially when it occurs consistently and resolves shortly after exercise. Given your situation, it’s crucial to approach this issue with caution and a thorough understanding of potential causes and implications.

Firstly, hematuria can arise from various factors, particularly in athletes or individuals who engage in high-impact activities like running. Common causes include:
1. Exercise-Induced Hematuria: This is a well-documented phenomenon where vigorous exercise, especially running, can lead to temporary blood in the urine. The exact mechanism is not entirely understood, but it may involve trauma to the bladder or kidneys, dehydration, or even the breakdown of red blood cells due to the physical stress of running.

2. Bladder or Kidney Trauma: While you’ve undergone imaging studies such as CT scans and cystoscopy without any findings, it’s still important to consider that minor trauma could occur during high-impact activities, especially if there are underlying conditions.

3. Dehydration: Insufficient hydration can concentrate urine and potentially irritate the bladder, leading to hematuria. Ensuring adequate fluid intake before, during, and after your runs is essential.

4. Underlying Medical Conditions: Given your history of hypertension, it’s important to consider how this may interact with your exercise regimen. High blood pressure can affect kidney function over time, and it’s crucial to manage it effectively.

5. Infections or Inflammation: While your tests may not have indicated any infections, it’s worth noting that urinary tract infections (UTIs) or bladder inflammation can sometimes present with hematuria, especially after physical exertion.

Now, regarding your question about whether to continue jogging, here are some considerations:
- Consult with a Specialist: Since you have already seen a doctor, it may be beneficial to consult a urologist or a sports medicine specialist who can provide a more focused evaluation of your symptoms. They may recommend further tests or a different approach to assess your urinary health.

- Monitor Symptoms: Keep a detailed log of your running activities, hydration levels, and any occurrences of hematuria. Note if there are specific distances or intensities that correlate with the onset of blood in your urine. This information can be invaluable for your healthcare provider.

- Modify Your Running Routine: If you notice that hematuria consistently occurs after running, consider reducing the intensity or duration of your runs. You might also explore alternative forms of exercise that are lower impact, such as swimming or cycling, which may not provoke the same response.

- Hydration and Nutrition: Ensure you are well-hydrated before and after your runs. Consider consulting with a nutritionist to optimize your diet for both performance and recovery.

- Rest and Recovery: Allow your body adequate time to recover between runs. Overtraining can exacerbate symptoms and lead to other injuries.

- Listen to Your Body: If you experience any pain, discomfort, or changes in your symptoms, it’s crucial to stop running and seek medical advice. Your health should always take precedence over maintaining a running routine.

In conclusion, while exercise is generally beneficial for overall health, the presence of hematuria after running warrants careful consideration. It’s essential to work closely with your healthcare providers to ensure that you can continue to engage in physical activity safely while addressing any underlying issues. Prioritize your health, and don’t hesitate to seek further evaluations if symptoms persist or worsen.

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