Can you die from a bone marrow transplant?

Yes, but unlikely: The bone marrow transplant procedure requires that your own diseased bone marrow be totally wiped out. Then when implanted bone marrow cells enter the body they will find a clean space to take up residence. Between removing old marrow and getting tranplant to grow a patient is at risk for severe, possibly fatal infections. This happens rarely.

Yes,: The risk depends on whether the transplant is with your own cells or from a donor. With your own cells the risk of transplant related death for most diseases is 2-5% but can be higher depending on the disease and other medical problems of the patient. The risk is generally higher for a donor transplant--typically ~15% for adults with a matched sibling but can be higher with other donors.

Yes: Depends on patient's condition , type of transplant, auto or allo, type of conditioning and subsequent complication. The simple answer is yes ppl can die but we don't do the procedure to let people die , we do it to save them. The question is what is the risk and what is the alternative. We know we can die of driving, but we take the risk.