What This Value Measures
MCV indicates the average volume of a single red blood cell. It helps distinguish between different forms of anemia.

Elevated Value
An elevated level (large erythrocytes) may indicate a deficiency of vitamin B12 or folic acid.
Low Value
A decreased level (small erythrocytes) may indicate iron deficiency.
Reference ranges are typical guide values for adults and vary depending on the laboratory, measurement method, age and sex — always compare with the range stated on your own report. A value outside the range does not automatically mean an illness, and a value within the range does not rule one out. The trend and overall picture are usually more informative than a single value. The doctor's assessment is always decisive.
