A low red blood cell count means cells in the body are not receiving enough oxygen. Anemia is the most common cause for an abnormally low amount of red blood cells, affecting 3.5 million Americans, as reported by WebMD.
Having a low blood count means that a person's bone marrow is not making enough of one or more types of blood cells, according to the Aplastic, Anemia & MDS International Foundation. The medical term for a low blood count is cytopenia.
One cause of low red blood cell count is pregnancy, but this is normal, according to Mayo Clinic. However, among the many other conditions and diseases that can cause a low red blood cell count are cancer, aplastic, vitamin-deficiency and iron-deficiency anemia, interna...
A normal red blood cell count for males is 4.7 to 6.1 million cells per microliter, and a normal count for females is 4.2 to 5.4 million cells per microliter, states MedlinePlus. Normal ranges may vary from lab to lab, and some labs may use a different form of measureme...
Inadequate generation of red blood cells, platelets or white blood cells by the bone marrow can cause a low blood count. This can occur due to certain bone marrow diseases such as paroxysmal nocturnal hemoglobinuria, aplastic anemia and myelodysplastic syndromes, bleedi...
Iron supplements containing the ferrous form of iron are the most common treatment for anemia, a disease involving low red blood cell counts, according to WebMD. The ferrous form of iron is particularly useful because the body can absorb it easily.
An elevated red blood cell count is associated with dehydration, congenital heart disease, kidney tumors, bone marrow diseases and scarring of the lungs, reports MedlinePlus. Red blood cells contain hemoglobin, a protein that transports oxygen.