Doctor's Assessment Included
Every result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
MCV value: what the MCV of your blood tells you
MCV (Mean Corpuscular Volume) measures the average size of your red blood cells. It is a key indicator used to classify different types of anemia and provides insight into the underlying cause of blood-related conditions.
Reference Ranges
Reference ranges may vary between laboratories. When you order a test, a BIG-registered doctor assesses your personal results in context. For treatment decisions, discuss your results with your GP.
What It Measures
This test calculates the average volume of a single red blood cell, measured in femtolitres (fL). It is derived from the hematocrit and red blood cell count. MCV helps categorise red blood cells as microcytic (small), normocytic (normal), or macrocytic (large).
Why It Matters
MCV is essential for diagnosing the type of anemia present. Low MCV may indicate iron deficiency or thalassemia, while high MCV can be associated with vitamin B12 or folate deficiency, liver disease, or certain medications. It guides healthcare providers toward the appropriate treatment approach.
When to Test
MCV is measured as part of a complete blood count (CBC) during routine health screening, when anemia is suspected or confirmed, or to investigate unexplained fatigue, weakness, or neurological symptoms.
Symptoms
Low Levels
High Levels
Lifestyle Tips
Maintain a varied diet with adequate iron, vitamin B12, and folate. Good sources include lean meats, leafy greens, eggs, dairy, and fortified cereals. Limit alcohol intake, as excessive consumption can raise MCV. If you follow a plant-based diet, consider B12 supplementation after consulting a healthcare professional.