The normal production of granulocytes in the bone marrow.
The process of production of granulocytes, which normally occurs in the blood-forming tissue of the bone marrow. Granulocytes are ultimately derived from a hemopoietic stem cell, but the earliest precursor that can be identified microscopically is the myeloblast. This divides and passes through a series of stages of maturation termed respectively ‘promyelocyte, myelocyte, and metamyelocyte, before becoming a mature granulocyte.