Mild: >90g/L

Moderate: <60~90g/L

Severity: <30~59g/L

Extremely severe: <30g/L

Myelodysplasia (Aplastic Anemia)

Myeloproliferative (anemia other than AA)

Grading and significance of bone marrow hyperplasia

Lack of hematopoietic raw materials: iron deficiency or iron utilization disorder, megaloblastic anemia (folic acid and/or vitamin B12 deficiency)

Anemia caused by abnormal hematopoietic stem/progenitor cells (bone marrow hematopoietic failure): aplastic anemia, myelodysplastic syndrome, anemia caused by various bone marrow infiltrates

Abnormal hematopoietic regulation: damaged bone marrow matrix, hyperactive lymphocytes, abnormal levels of hematopoietic regulatory factors, and hyperapoptosis of hematopoietic cells

Intrinsic defects in red blood cells

red blood cell extrinsic factors

Anemia after acute blood loss: surgical or obstetrical and gynecological diseases, massive bleeding, gastrointestinal bleeding, massive bleeding caused by blood system diseases, etc.

Chronic post-blood loss anemia: repeated small amounts of upper gastrointestinal bleeding, hemorrhoidal bleeding, parasitic diseases, menorrhagia, etc.

Examination of the pathogenesis of anemia

Blood test

bone marrow examination

Anti-infection, hemostasis; protect organ function; remove iron

Transfusion of whole blood, red blood cells, plasma, platelet coagulation factors

Supplement hematopoietic raw materials

Hormone immunosuppressants, cytokines

HSCT