Why do white-blood cells not divide?

Good question and I don't know the answer. I thought all cells with nuclei replaced themselves, and WBC's have a nucleus. read more

White blood cells like granulocytes, macrophages, dendritic cells and natural killer cells are all terminally differentiated cells, hence don’t divide at all. B cells and T cells (either naive or memory) retain the ability of dividing and differentiating. read more

What most people think of as "white blood cells" are macrophages, and those in fact do NOT divide. "White blood cells" is just a general term to describe cells of the immune system. It's name comes from when you centrifuge blood and three layers are formed. read more