We would like to show you a description here but the site won’t allow us. A mean corpuscular volume (MCV) test measures the average size and volume of red blood cells. Low, high, or normal MCV can indicate types of anemia. The term "Mean Corpuscular Volume," or "MCV," refers to the measurement of the red blood cell's usual size. For assessing and keeping track of general health, an MCV blood test is a crucial testing method. This test is included in a common blood test called a CBC (Complete Blood Count). MCV, or Mean Corpuscular Volume, is a critical parameter in your complete blood count (CBC) test. It measures the average size of your red blood cells and provides valuable insights into your overall health. An abnormal MCV level—either too high or too low—can indicate underlying health conditions that may require attention.