what does a blood marrow transplant do
Blood or bone marrow transplants most commonly are used to treat blood cancers or other kinds of blood diseases that decrease the number of healthy blood cells in the body. These transplants also may be used to treat other disorders.
The purpose of a stem cell transplant or a bone marrow transplant is to replenish the body with healthy cells and bone marrow when chemotherapy and radiation are finished. After a successful transplant, the bone marrow will start to produce new blood cells. In some cases, the transplant can have an added benefit; the new blood cells will also attack and destroy any cancer cells that survived the initial treatment.