Bone marrow examination Bone marrow is usually examined to answer certain question that arose from evaluating the CBC Indications for bone marrow examination include: nonregenerative anemia Persistent neutropenia Persistent thrombocytopenia Unexplained polycythemia or thrombocytosis Atypical cells in bloodBone Marrow Examination • Bone marrow is usually examined to answer certain question that arose from evaluating the CBC. • Indications for bone marrow examination include: --nonregenerative anemia --Persistent neutropenia --Persistent thrombocytopenia --Unexplained polycythemia or thrombocytosis --Atypical cells in blood