Refers to how well a graft (donor cells) is accepted by the host (the patient) after a bone marrow bone marrow: The soft, spongy tissue inside most bones. Blood cells are formed in the bone marrow. or stem cell transplant. Several factors contribute to better engraftment - physical condition of the patient, how severe the disease is, type of donor available, age of patient. Successful engraftment results in new bone marrow that produces healthy blood cells.
