Polycystic Ovarian Syndrome (PCOS) Support Group

Polycythemia is a condition in which there is a net increase in the total circulating erythrocyte (red blood cell) mass of the body. Primary polycythemia occurs when excess erythrocytes are produced as a result of a proliferative abnormality of the bone marrow. Secondary polycythemia is caused by increases of erythropoietin that result in an increased production of...