Erythrocyte specific volume (PCV), also called erythrocyte specific volume and erythrocyte pressure product, is the volume ratio of red blood cells in the blood, with a normal reference range of 42%-49% for men and 37%-43% for women. The low erythrocyte volume is generally classified as physiologically low and pathologically low. A physiological low: 1, excessive water: If a large amount of water within a short period of time, red blood cells will swell, resulting in a sharp decrease in the number of cells, can appear low erythrocyte product, this is a normal physiological phenomenon, no special treatment; 2, nutritional deficiencies: for unbalanced nutrition, dieting and weight loss people, easy to lead to insufficient intake of trace elements, thus causing low erythrocyte product, should improve Dietary habits, more high-quality protein, fresh vegetables and fruits, to maintain a balanced nutrition, can gradually return to normal; 3, female physiological period: women in the physiological period, blood loss is greater, such as during the examination, found that low erythrocyte product is a normal phenomenon, can be supplemented with iron during the physiological period, such as spinach, red meat (beef, mutton, pork), red dates and other foods, generally after the end of the physiological period can 4, other: pregnant women and the elderly, due to special reasons, such as fetal absorption of maternal iron during pregnancy, resulting in the loss of iron in pregnant women, can cause low erythrocyte product, this is a physiological phenomenon of the human body, timely supplementation and iron can be. Pathological low: 1, blood diseases: various reasons for the reduction in the number of red blood cells, red blood cell volume reduction, etc.. For example, aplastic anemia, due to bone marrow hematopoietic failure, red blood cell production is reduced, there will be a low erythrocyte product; and iron deficiency anemia, due to the lack of iron, the volume of red blood cells decreased, the number is reduced, so there is a low erythrocyte product, resulting in the lack of oxygen in the body organs and tissues, patients often accompanied by dizziness, weakness, pale, loss of appetite, drowsiness and other performance, should promptly seek medical advice, follow the The patient should seek medical advice to supplement nutrition, such as folic acid, vitamin B12 or serum ferritin, and if necessary, blood transfusion therapy; 2, liver and kidney diseases: often due to reduced secretion of erythropoietin by the liver and kidneys, or uremia resulting in reduced response to erythropoietin, etc., can cause a low erythrocyte ratio, anemia and other phenomena, should follow medical advice to supplement blood treatment, correct anemia while actively treating the original disease to reduce Tumor diseases: such as gastric cancer, lung cancer, liver cancer, bone marrow cancer and other advanced tumors can easily affect the hematopoietic function of bone marrow, resulting in a decrease in the number of red blood cells, which is often accompanied by fever, loss of appetite, emaciation, anemia and other symptoms, and can be treated symptomatically according to medical prescriptions, such as radiotherapy, or resection of local tumors, and treatment with hematopoietic drugs or drugs that stimulate hematopoiesis, such as ferrous sulfate, ferric ammonium citrate, colony-stimulating factor, erythropoietin, etc., and if necessary, blood transfusion therapy. As you can see, there are many causes of low erythrocyte product, so when the erythrocyte product is low, you should follow the doctor’s instructions to improve the corresponding detailed blood tests, according to the patient’s situation for the cause of treatment, daily should maintain a balanced nutrition, eat more food with high protein content, reduce the intake of spicy and stimulating, greasy food, appropriate increase exercise, ensure sleep, improve their own physical fitness, if there is discomfort, should promptly seek medical attention, to avoid aggravation of the condition. In order to avoid aggravation of the disease, affecting the health of the body.