The cost of treatment for rejection after leukemia transplantation ranges from $100,000 to $800,000, varying greatly depending on the patient’s condition. Rejection after leukemia transplantation, the treatment cost is related to the patient’s clinical individual tolerance, the presence of complications and other conditions, there are individual differences, the cost is not a fixed number. 1. If the patient’s condition is stable, anti-rejection drugs such as tacrolimus and cyclosporine can usually be completely stopped within half a year to one year. If rejection persists and continuous medication is needed, the cost will persist and will be relatively high. If graft-versus-host disease develops, the cost increases significantly and may be treated with expensive drugs such as baliximab. 2. If the patient develops complications such as infections during anti-rejection therapy, anti-infective treatment is required and the cost for control and prevention may be doubled. Drugs include voriconazole, imipenem, vancomycin, tigecycline, meropenem, caspofungin, etc., which are more expensive. Leukemia transplantation therapy refers to hematopoietic stem cell transplantation. First, after chemotherapy treatment, the abnormal cells in the patient’s body will be removed, and then transplanted with their own or other people’s hematopoietic stem cells. The use of specific drugs need to be under the guidance of a physician.