Bone marrow transplantation is a treatment for blood disorders. Bone marrow transplantation is essentially a type of hematopoietic stem cell transplantation in which normal bone marrow is fed into a patient through a vein to replace diseased bone marrow and help re-establish a normal hematopoietic and immune system. It is mainly used to treat diseases such as leukemia, lymphoma, myelodysplastic syndromes and severe aplastic anemia. Bone marrow transplantation requires relatively strict physical conditions, if there are infections or organ failure, etc., it is not suitable for bone marrow transplantation, and need to control these conditions before considering transplantation. For example, patients should be treated with levofloxacin to fight infection and glutathione to protect the liver. Complications of bone marrow transplantation mainly include infection and graft-versus-host disease. After bone marrow transplantation, we should pay attention to dietary hygiene, avoid drinking alcohol, avoid eating spicy and irritating foods such as chili peppers, etc., strengthen personal hygiene, take medication on time, and have regular checkups. Specific transplantation treatment and medication should be carried out under the guidance of physicians.