Your WBC Count: What Do Your Health Check Results Mean? - Family Medicine

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White blood cell count in health examinations?


Dear Doctor, I had health check-up reports on May 3rd and August 6th, with white blood cell (WBC) counts of 5.65 and 2.2, respectively.
Could you please help me understand this? Or could you suggest which department I should consult?

Mi Xue, 50~59 year old female. Ask Date: 2018/08/31

Dr. Ye Qianyu reply Family Medicine


Hello! It is recommended that you prepare a complete health examination report and consult at a family medicine clinic.
If you experience symptoms such as fever, weight loss, or lymphadenopathy, it is advisable to seek treatment from an infectious disease specialist.
Thank you for your inquiry!

Reply Date: 2018/08/31

More Info


Understanding your white blood cell (WBC) count is crucial for assessing your immune system's health and identifying potential underlying health issues. The WBC count is a key component of a complete blood count (CBC) and serves as an indicator of your body's ability to fight infections and respond to various health challenges.

In your case, you reported WBC counts of 5.65 (in May) and 2.2 (in August). The normal range for WBC counts typically falls between 4,000 to 11,000 cells per microliter (or 4.0 to 11.0 x 10^3/µL). Your May result of 5.65 is within the normal range, indicating that your immune system was functioning properly at that time. However, the August result of 2.2 is significantly below the normal range, which is a cause for concern.

A low WBC count, known as leukopenia, can result from various factors, including:
1. Infections: Certain viral infections can temporarily reduce WBC counts.

2. Bone Marrow Disorders: Conditions affecting the bone marrow, such as aplastic anemia or leukemia, can lead to decreased production of white blood cells.

3. Autoimmune Disorders: Diseases like lupus or rheumatoid arthritis can cause the immune system to attack its own cells, including white blood cells.

4. Nutritional Deficiencies: Deficiencies in vitamin B12, folate, or copper can impair WBC production.

5. Medications: Some medications, particularly chemotherapy drugs or those that suppress the immune system, can lead to lower WBC counts.

Given the significant drop in your WBC count from May to August, it is essential to follow up with a healthcare professional. I recommend consulting a hematologist, a specialist in blood disorders, who can provide a more comprehensive evaluation. They may suggest additional tests, such as a repeat CBC, a peripheral blood smear, or bone marrow biopsy, to determine the underlying cause of your leukopenia.

In the meantime, pay attention to any symptoms you may be experiencing, such as frequent infections, fatigue, or unexplained bruising or bleeding, as these can provide valuable information to your healthcare provider. It is also advisable to maintain a healthy diet rich in essential nutrients to support your immune system.

In conclusion, while your May WBC count was normal, the August count indicates a potential health issue that warrants further investigation. Seeking the expertise of a hematologist will be crucial in understanding the cause of your low WBC count and determining the appropriate course of action.

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