Bone Marrow transplantation is a relatively new medical procedure where stem cells from the bone marrow are taken out and filtered to be given back either to the same individual or another person. Being the main blood cell factory of the body, bone marrow forms a very essential part of human body. It is used to treat several diseases today that were considered to be incurable earlier. Since the first bone marrow transplant that was successfully done in 1968, this procedure has been used to cure aplastic anemia, leukemia, multiple myeloma, immune deficiency disorders, lymphomas such as Hodgkin's disease, and some solid tumors such as ovarian and breast cancer. Even though thousands of patients undergo BMT each year in the United States itself, more than double the number of persons who aren't able to get BMT done due to unavailability of a suitable bone marrow donor.