What are the risks and benefits of bone marrow transplants?

Life saving.: Benefit is not dying from the disease being treated with transplant. Risks are death from infection, or organ damage from treatment. Later on, risk is graft vs host disease (gvhd) where the new immune system attacks the recipient. Common sites are skin, mucus membranes, GI tract, liver. Infection also more likely with gvhd. Drugs can damage joints, esp. Hips and shoulders. Varies how severe.