Risks
By Mayo Clinic staffA stem cell transplant poses many risks of complications, some potentially fatal. Although some people experience few problems with a transplant, others must endure frequent tests and repeated hospitalizations.
Complications that can arise with a stem cell transplant include:
- Graft-versus-host disease
- Stem cell (graft) failure
- Organ damage
- Cataracts
- Secondary cancers
- Death
Your doctor can explain your risk of complications from stem cell transplant. Together you can weigh the risks and benefits to decide whether stem cell transplant is right for you.
Graft-versus-host disease: A potential risk when stem cells come from donors
If you're undergoing a transplant that will use stem cells from a donor (allogenic stem cell transplant), you may be at risk of graft-versus-host disease. This condition occurs when a donor's transplanted stem cells attack your body. Graft-versus-host disease can be mild or severe. It can occur soon after your transplant or months to years later.
Graft-versus-host disease can cause skin rashes, abdominal pain, diarrhea, nausea and vomiting. Over time it can cause other complications and chronic illnesses. Your doctor will monitor you closely for signs and symptoms of graft-versus-host disease.
- Bone marrow transplantation and peripheral blood stem cell transplantation. National Cancer Institute. http://www.cancer.gov/cancertopics/factsheet/Therapy/bone-marrow-transplant/. Accessed Feb. 17, 2010.
- Blood and marrow stem cell transplantation. Leukemia & Lymphoma Society. http://www.leukemia-lymphoma.org/attachments/National/br_1203086953.pdf. Accessed March 12, 2010.
- Aplastic anemia. National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/aplastic/aplastic_all.html. Accessed March 12, 2010.

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