Bone marrow transplantation (also known as stem cell transplantation) involves harvesting healthy stem cells to replenish the bone marrow of the patient. The new stem cells take over the production of the blood cells.
In some circumstances, it may be possible to take your own bone marrow from another part of your body (this is known as autologous transplantation). The bone marrow may be cleared of any diseased cells before being returned.
Leukaemia is cancer of the white blood cells. The cancer causes the white blood cells to replicate in an uncontrollable manner and they do not develop any infection-fighting properties.
The cancerous cells can quickly spread through the bloodstream, resulting in a lack of room for red blood cells and platelets.
This leads to symptoms of anaemia, increases the risk of serious infection, and means that you will bruise and bleed more easily.