Normal values of red blood cells (erythrocytes) in the blood and causes of their number deviation <br /><br />Erythrocytes (red blood cells) <br />Normal values (number of cells per cubic millimeter of blood): 4,000,000 - 6,200,000 (depending on age and gender). <br />The main reasons for the decline in numbers: <br />Anemia <br />The main reasons for the increase in numbers: <br />Erythrocytosis (polyglobulia) <br /><br />#Increasedredbloodcells #Lowredbloodcellcount #Redbloodcellcount #Redbloodcellsanemia #Redbloodcellsnormalvalue #highredbloodcellcount #highredbloodcells #lowredbloodcells #redbloodcells