He is known as transplant of bone marrow, the procedure in which are transplant or exchanges given patient bone marrow, by an another person, or the same patient bone marrow. Where is transplanting the marrow from the patient, is known as an autologous transplant, while where was transplanting the marrow from another person, referred to as allogeneic transplant. So that this intervention be carried out in a satisfactory manner, a thorough preparation is needed. During this stage of conditioning, seeks to delete in total or partially, those parents which contains the spinal cord, to thus leave room for the implant donor that will soon take place. This elimination of through various drug like chemotherapy or radiotherapy. This transplant is done mostly to those who suffer from aplasia of bone marrow, or hereditary diseases. Likewise, often do this procedure to those sick people of leukemia, lymphomas, and immunodeficiencies, among other diseases. Now that you know more about this type of surgery, you will be agree with me, to say that fortunately the medical advances favor the quality of life for all humanity. A. Verastegui hold.