1, red blood cell diseases: iron deficiency anemia, megaloblastic anemia, aplastic anemia, hemolytic anemia, thalassemia, autoimmune hemolytic anemia, pharmacological hemolytic anemia, paroxysmal sleep hemoglobinuria, acute hemorrhagic anemia, chronic disease anemia, hemochromatosis, etc.; 2, white blood cell diseases: leukopenia, granulocyte deficiency, eosinophilia, acute leukemia 3, bleeding disorders: simple purpura, allergic purpura, immune thrombocytopenia, thrombotic thrombocytopenic purpura, thrombocytopenia, thrombocytopenia, hemophilia Acquired coagulation disorders, etc.; 4. Myeloproliferative disorders: true erythrocytosis, primary thrombocytosis, chronic idiopathic myelofibrosis.