Urine Blood Test Results: Menstrual Cycle Impact - Urology

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Hematuria


Hello doctor, I started my menstrual period on Monday, and by Friday there was only a little left.
By Saturday, there was no blood.
On Saturday, I had a urine test, and the result showed 3+ hematuria.
I haven't experienced any discomfort before, so I'm wondering if the positive result is entirely due to my menstrual period.
Thank you, doctor.

hana, 10~19 year old female. Ask Date: 2021/04/16

Dr. Jian Weihong reply Urology


Hello: Clinically, it is quite possible that your condition is influenced by your menstrual cycle.
If possible, it may be advisable to repeat the urine test, as your current urine results are abnormal, and further monitoring is reasonable.
Wishing you good health.

Reply Date: 2021/04/16

More Info


When interpreting urine test results, particularly concerning the presence of blood (hematuria), it is essential to consider various factors, including the timing of the menstrual cycle. In your case, you mentioned that you were menstruating earlier in the week and had a urine test on Saturday, which showed a result of 3+ for urine blood.
Firstly, it is important to understand that the presence of blood in urine can arise from several causes, including menstrual blood contamination, urinary tract infections, kidney stones, or other underlying medical conditions. Given that you were menstruating just a few days prior to the urine test, it is quite possible that the positive result for blood in the urine could be attributed to menstrual contamination.
Menstrual blood can easily mix with urine during the collection process, leading to a false positive result for hematuria. This is particularly relevant if the urine sample was collected without taking precautions to avoid contamination, such as using a clean-catch method. Therefore, it is advisable to consider the timing of your menstrual cycle when interpreting the results of your urine test.

In general, if a urine test shows significant hematuria (3+ or higher), it warrants further investigation to rule out other potential causes. However, if the timing of your menstrual cycle coincides with the test, it may be prudent to repeat the urine test after your menstrual period has concluded to obtain a clearer picture of your urinary health.
Additionally, if you experience any symptoms such as pain during urination, frequent urination, or any unusual discomfort, it is essential to consult with your healthcare provider. They may recommend additional tests, such as a urine culture or imaging studies, to further evaluate your urinary tract and kidneys.

In summary, while the presence of blood in your urine could be influenced by your menstrual cycle, it is crucial to follow up with your healthcare provider for a comprehensive evaluation. They can help determine whether the result is indeed due to menstrual contamination or if further investigation is necessary to rule out other potential health issues. Always communicate any relevant information about your menstrual cycle to your healthcare provider when undergoing tests that may be affected by it.

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