Granulocytes are kinds of white blood cells which are characterized in their cytoplasm by the occurrence of granules. are known also as polymorphonuclear leukocytes (PMN or PML) as their nucleus sharp is various types. Nucleus is generally tossed into three sections. In regular parlance, the term polymorphonuclear leukocyte frequently refers exclusively to neutrophil granulocytes which are the most plentiful of the granulocytes. Granulocytes or PMN are free from bone marrow by the complement proteins. There are three kinds of granulocytes. They are mainly differentiated by their exterior look under Wright’s stain. They are Neutrophil granulocytes Eosinophil granulocytes Basophile granulocytes.