Leukemia is a hematologic tumor caused by the malignant clonal proliferation of hematopoietic stem cells, clonal leukemia cells proliferate and accumulate in the bone marrow and other hematopoietic tissues and infiltrate other non-hematopoietic tissues and organs due to uncontrolled proliferation, differentiation disorders, apoptosis and other mechanisms, and at the same time inhibit normal hematopoietic function. 
Bone marrow transplantation is currently the method that can achieve the highest success rate for leukemia, howeverA successful bone marrow transplant is not the same as a disease. Leukemia patients also need to have a bone marrow transplant after a bone marrow transplantOvercome infections, immune rejections, and diseases**, if you can overcome themSome patients can be cured, but bone marrow transplantation is not 100% possible for leukemia. Leukemia is a malignant tumor of the blood system, and bone marrow transplantation can be used to perform it**, but bone marrow transplantation also requires many conditions. 
First of all, it is necessary to carry out the matching of bone marrow, which is often more difficult. Secondly, the cost of bone marrow transplant is also relatively high. Thirdly, after bone marrow transplantation, patients may develop serious complications, some patients may develop infection, and some patients may develop graft-versus-host disease. Of course, there are also a small number of patients who may have ** after bone marrow transplantation. Therefore, nearly half of the patients with bone marrow transplant** leukemia may be cured.