Background: The human face is critically important for breathing, eating, seeing, and speaking/ communicating, but its most important job may be to look like a human face. Devastating facial deformities often cause affected individuals to avoid human contact and disappear from society. Although current surgical advancements can somewhat restore facial defects, this process often requires many operations and the resulting face only resembles the human face. To date, over 20 face transplants have been performed with highly encouraging functional and aesthetic results, but widespread clinical use has been limited due to the adverse effects of life-long and high-dose immunosuppression needed to prevent graft rejection. Risks include infection, cancer, and metabolic problems, all of which can greatly affect recipients' quality of life, make the procedure riskier, and jeopardize the potential benefits of face transplantation.