What diseases can unhealthy blood cause?

1. Erythrocyte diseases: iron deficiency anemia, megaloblastic anemia, aplastic anemia, hemolytic anemia, thalassemia, autoimmune hemolytic anemia, drug-induced hemolytic anemia, paroxysmal nocturnal hemoglobinuria, acute hemorrhagic anemia, chronic anemia, hemochromatosis, etc. 2. Leucocyte diseases: leukopenia, agranulocytosis, eosinophilia, acute leukemia, chronic leukemia, myelodysplastic syndrome, malignant lymphoma (Hodgkin's lymphoma, non-Hodgkin's lymphoma), infectious mononucleosis, malignant histiocytosis, multiple myeloma, etc. 3. Hemorrhagic diseases: simple purpura, allergic purpura, idiopathic thrombocytopenic purpura, thrombotic thrombocytopenic purpura, thrombocytopenia, hemophilia, acquired coagulopathy, etc. 4. Myelodysplastic diseases: polycythemia vera, primary thrombocytosis and primary myelofibrosis.