marrow transplantation

Marrow transplantation, also called stem cell transplantation, is a medical procedure to replace damaged or diseased bone marrow—the soft tissue inside bones that produces blood cells—with healthy stem cells. These stem cells can come from the patient (autologous) or a donor (allogeneic). The process involves preparing the patient with chemotherapy or radiation to eliminate diseased cells, then infusing the healthy stem cells into their bloodstream. The transplanted cells travel to the bone marrow, where they begin producing new, healthy blood cells, helping to restore the immune system and treat conditions like leukemia, lymphoma, or other blood disorders.