Aplastic anemia can be treated effectively with haematopoietic stem cell transplantation and immunosuppressive drug regimens but haematopoietic stem cell transplantation has limitations due to its cost and many patient are unsuitable. Immunosuppressive drug has a significant number of patients have persistent cytopenias. Currently, the treatment of these patients is regular transfusion, which are expensive, inconvenient, and associated with serious side effects related to iron overload and transfusion.