Reviewed: 16. April 2026
MCV Mean Corpuscular Volume (MCV)
Unit: fl
Quick Explanation
MCV measures the average size of red blood cells. Small cells may indicate iron deficiency, while large cells can suggest vitamin B12 or folate deficiency. Discuss any abnormal results with your doctor.
📊 Reference Values
ℹ️ Reference ranges may vary slightly between laboratories. Always compare your value with the reference range from your own lab report.
🔍 Possible Causes
Value too high — possible causes
- ·Vitamin B12 deficiency
- ·Folate deficiency
- ·Alcohol use
- ·Hypothyroidism
Value too low — possible causes
- ·Iron deficiency
- ·Thalassemia
- ·Chronic inflammatory diseases
This list shows possible causes — not a diagnosis. Only your doctor can correctly interpret your result.
🩺 Questions for Your Doctor
- →Does my MCV suggest a nutritional deficiency?
- →Should I take vitamin B12 or folate?
- →Do I need a more detailed blood test?
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Medical Disclaimer
The content on this page is for general information only and does not replace professional medical advice, diagnosis, or treatment. Always consult your doctor or pharmacist for health-related questions. Lab values should always be assessed in the context of your personal medical history.