An MCV test measures the average size and volume of your red blood cells. Low MCV suggests microcytic anemia, with red blood cells smaller than normal. High MCV suggests macrocytic anemia, with red ...

What Is an MCV Blood Test? MCV stands for mean corpuscular volume. An MCV blood test measures the average size of red blood cells, which have the critical job of carrying oxygen to your organs. If ...

A high MCV means your red blood cells are larger than normal. A high MCV can be associated with a group of cancers called myelodysplastic syndromes. However, other causes of high MCV, such as vitamin ...

Patients with a low MCV are likely to have iron deficiency anemia, although thalassemia and anemia of chronic disease are part of the differential. 1 When the MCV is low, the serum ferritin level can ...