| Developmental |
| Trisomy 13 |
| Infants of diabetic mothers |
| Bone marrow regeneration |
| Acute blood loss |
| Transient erythroblastopenia of childhood |
| Bone marrow transplantation |
| Chemotherapy |
| Following iron treatment in severe iron deficiency |
| Bone marrow failure syndromes |
| Fanconi anemia, dyskeratosis congenita, Diamond-Blackfan anemia |
| Leukemia |
| Juvenile myelomonocytic leukemia (JMML) |
| Erythroleukemia |
| Miscellaneous |
| Choriocarcinoma |
