Anemia according to response:
- Regenerative anemia:
- Bone marrow is responsive to this type of anemia.
- It is characterized by increased number of immature RBC in peripheral circulation
- Ex; blood loss anemia, hemolytic anemia
- Non-regenerative anemia:
- Bone marrow is not responsive to anemic state.
- Bone marrow are unable to produce red blood cells.
- Ex; Depression anemias and aplastic anemias