@luckonetj and @rosemarya, Thanks for asking this question! At Mayo Clinic, someone who has had a transplant is not able to be a living donor. The effects of immunosuppression would rule that person out as a donor. This answer may differ at other transplant centers, but I have not heard of a center that would allow a recipient to be a living donor. On the plus side, anyone, regardless of their medical history, can register to be a deceased donor. At the time of death, the doctors would determine if organs are able to be used for transplant. If anyone is interested, visit https://registerme.org/ for more information.