Low mean red blood cell volume can be improved by exogenous supplementation with food and targeted medications. The average red blood cell volume is normally in the range of 80 to 100fl, and if it is lower than 80fl, it belongs to the low average red blood cell volume, which is commonly caused by various reasons of anemia, such as iron deficiency anemia, chronic anemia, pernicious anemia, thalassemia and so on. Generally speaking, the improvement method of anemia is to supplement the blood-forming raw materials, which can be improved by eating some animal liver, blood products, red dates, wolfberries and other iron-rich foods. The main treatment is for the cause of the disease, such as exogenous iron supplementation to improve iron deficiency anemia. In addition, low mean red blood cell volume can be seen in normal physiological conditions, and no special treatment is needed if there is no anemia. If you have a low mean red blood cell volume, you can go to the hospital to get a clear understanding of the cause of the disease and then carry out targeted treatment.