When a person's organ fails whether a heart, liver, kidney, or other organ often the best treatment available is to transplant a new organ donated by another person .
Some people agree to donate their organs after they die.
For example, when receiving a driver's licence, a person can choose to fill a form for donation of organs in the event of a fatal accident. Presently, the only source of donor transplant organs for humans is from other human donors. A possible solution to the chronic organ shortage in Canada and elsewhere is to use organs from animals for human transplantation.