GVHD occurs when the transplanted bone marrow cells recognize the recipient's body as foreign and attack it. This can lead to a range of symptoms, including skin rash, diarrhea, liver problems, and respiratory issues. GVHD can be mild or severe and can occur at any time after the transplant.
Patients who undergo bone marrow transplant are at a higher risk for infections due to the weakening of their immune system. Infections can be bacterial, viral, or fungal and can be life-threatening if left untreated.
Graft failure occurs when the transplanted bone marrow cells fail to engraft and produce new blood cells. This can lead to a range of symptoms, including anemia, bleeding, and infections. Graft failure can occur immediately after the transplant or several weeks or months later.
The high doses of chemotherapy and radiation used in bone marrow transplant can cause damage to the liver, lungs, and other organs. This can lead to a range of symptoms, including fatigue, shortness of breath, and jaundice.
Other complications of bone marrow transplant can include infertility, cataracts, and secondary cancers. These complications can occur months or years after the transplant.