Organ transplantation could be a process within which associate degree organ is off from one body and placed within the body of a recipient, to interchange a broken or missing organ. The donor and recipient could also be at constant location, or organs could also be transported from a donor website to a different location. Organs and/or tissues that ar transplanted among constant person's body ar known as autografts. Transplants that ar recently performed between 2 subjects of constant species ar known as allografts. Allografts will either be from a living or body supply. Organs that are with success transplanted embody the center, kidneys, liver, lungs, pancreas, intestine, thymus and womb. Tissues embody bones, tendons (both spoken as contractile organ grafts), corneae, skin, heart valves, nerves and veins. Worldwide, the kidneys ar the foremost unremarkably transplanted organs, followed by the liver then the center. Corneae and contractile organ grafts ar the foremost unremarkably transplanted tissues; these total organ transplants by over denary.