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, apl... More »

A low blood count in men is most commonly caused by iron deficiency anemia from chronic occult bleeding. Other causes of iron deficiency anemia include intravascular hemolysis, vitamin C deficiency, as well as an increas... More »

The causes of a low lymphocyte count include leukemia, steroid use, HIV infection and sepsis, according to MedlinePlus. Chemotherapy and radiation exposure also affect lymphocyte levels. A lymphocyte is a type of white b... More »

www.reference.com Health Medical Ranges & Levels

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 coun... More »

The most common blood test, the complete blood count, or CBC, measures red blood cells, white blood cells, hemoglobin, hematocrit, platelets and mean corpuscular volume of the blood, according to the National Heart, Lung... More »

The composition of blood consists of various components, such as plasma, white blood cells, red blood cells and platelets. Plasma, which is the fluid component that contains the different blood cells and substances of wh... More »

Normal blood count levels for females are 3.90 to 5.03 million red blood cells per microliter, 120 to 155 grams of hemoglobin per liter, 34.9 to 44.5 percent hematocrit, 3,500 to 10,500 white blood cells per microliter a... More »