Introduction: Pancytopenia is a hematological condition in which there is a reduction in all three cell lines of blood. This study aims to evaluate the utility of reticulocyte indices such as reticulocyte % (retic %). immature reticulocyte fraction (IRF). and mean reticulocyte volume (MRV) in identifying the cause of pancytopenia. https://www.storeanimalwiz.shop/product-category/filter-cartridges/