A bone marrow transplant is a medical treatment that replaces your damaged blood-forming cells, also known as stem cells, with healthy cells.
The bone marrow is a blood-making factory, producing stem cells that eventually mature into red blood cells, white blood cells and platelets.
A bone marrow transplant can be done either between a patient and a separate donor (allogeneic transplant) or using the patient’s own cells (autologous transplant) where healthy cells are extracted and transplanted after treatment.
This treatment is necessary if your bone marrow stops working or your body is not producing enough healthy blood cells. It treats a variety of conditions, including cancers such as lymphoma and multiple myeloma.