Does a bone marrow transplant hurt?

Bone marrow . The actual infusion of the cells does not hurt. The side effects of the chemotherapy and/or radiation therapy that are part of the preparative regimen of the transplant can be unpleasant. This can include nausea, vomiting, diarrhea, mouth sores, infections.
NO. Painless. It looks just like a blood transfusion. You get it through your veins.