A bone marrow transplant is a medical procedure performed to replace unhealthy bone marrow stem cells with the healthy ones. This transplant is carried out to treat people with conditions like leukaemia - Blood Cancer, multiple myeloma, severe blood diseases such as aplastic anaemia, thalassemia, sickle cell anaemia and certain immune deficiency diseases. Typically, the stem cells are collected via a peripheral vein. The whole bone marrow transplant procedure is like donating blood or platelets. The stem cells from the bone marrow are in charge for producing blood cells like platelets (thrombocytes), white blood cells (leukocytes) and red blood cells (erythrocytes), which later are injected in a recipient after a short course of chemotherapy.