Elevated Eosinophils: Impact of Menstruation on Test Results - Family Medicine

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Eosinophilia


Hello doctor, I recently had a company health check, and the report showed that my eosinophil percentage (Eosin%) is 9.0 and eosinophil count (Eosin#) is 0.7.
Since it was the first day of my menstrual period on the day of the check-up, I am wondering if this could affect the results.

Miss Yang, 20~29 year old female. Ask Date: 2021/11/29

Dr. Hou Angting reply Family Medicine


Hello, internet user: It is generally difficult to interpret a blood report based on a single abnormal value; it often requires a combination of results for accurate interpretation.
Additionally, the menstrual cycle typically does not significantly affect blood reports.
I recommend consulting with a family medicine physician for further advice.
Wishing you good health.

Reply Date: 2021/11/29

More Info


Elevated eosinophils, or eosinophilia, can be a significant indicator of various underlying health conditions, including allergies, infections, autoimmune diseases, and certain malignancies. In your case, you mentioned that your eosinophil percentage was 9.0% and the absolute eosinophil count was 0.7, which are indeed elevated levels. However, you also noted that your menstrual period began on the day of your blood test.
Menstruation can potentially influence various laboratory test results, including eosinophil counts. Hormonal fluctuations during the menstrual cycle can affect the immune system and blood cell production. For instance, estrogen and progesterone levels change significantly throughout the cycle, which can lead to variations in white blood cell counts, including eosinophils.
While there is limited specific research directly linking menstruation to eosinophil levels, it is known that the immune response can be modulated by hormonal changes. Some studies suggest that eosinophil levels may be influenced by the menstrual cycle, with variations observed in different phases. For example, some women may experience fluctuations in eosinophil counts during the luteal phase compared to the follicular phase of their cycle.

Given that your test was conducted on the first day of your menstrual period, it is plausible that the hormonal changes associated with menstruation could have contributed to the elevated eosinophil levels observed in your test results. It is essential to consider this context when interpreting your lab results.
If you have a history of allergies, asthma, or other conditions that could lead to elevated eosinophils, it would be wise to discuss these results with your healthcare provider. They may recommend retesting after your menstrual cycle to see if the eosinophil levels normalize. Additionally, if you experience symptoms such as rashes, respiratory issues, or gastrointestinal problems, these should be evaluated further to determine if they are related to the elevated eosinophils or other underlying conditions.

In summary, while elevated eosinophils can indicate various health issues, your menstrual cycle may have played a role in the test results. It is advisable to follow up with your healthcare provider for a comprehensive evaluation and to discuss the need for any further testing or monitoring based on your symptoms and medical history.

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