Transplant Matching Donors to Recipients: Types of Living Donation By Transplant Services, September 15, 2017 Living organ donation isn’t as rare as you think. In fact, 47 percent of all transplanted organs in the United States are from living donors. But there is a great need for living liver donors. More than 15,000 Americans are on the waitlist for a liver transplant, but only 5,000 deceased donor livers are available. Find out how to register to become an organ donor and get more information on organ donation. 3 Types of Living Organ Donation There are three categories of living organ donation. Directed donation The donor specifically chooses who will receive the organ transplant. Non-directed donation The donor is neither related to nor known by the person in need. He or she makes the donation out of selfless reasons. The recipient is determined primarily by medical compatibility. Paired donations (kidney only) This involves at least two pairs of living kidney donors and transplant candidates who do not have matching blood types. The transplant candidates trade donors, so each recipient receives a kidney from a donor with a compatible blood type.