WBC or leukocytes are the white blood cells. The WBC cells are divided into granulocytes, consisting of eosinophil, basophil and neutrophil and agranulocytes, consisting of lymphocytes and monocytes. The normal WBC count is about 4000-11000/cmm of blood ,with 65% of neutrophil ,4% eosinophil ,0.5% basophil ,23% lymphocyte and 5% monocyte.