How are kidneys selected when a kidney patient has several donors?
If a recipient has more than one willing donor and assuming they are all appropriate to donate, siblings are chosen first since they usually have the best match from an immune system perspective. After siblings, a parent is next, depending on age and health. Then any other blood relative is considered. After blood relatives, donors can usually be anyone who has a close personal relationship with the recipient such as a spouse or a best friend. There are also altruistic donors, such as through our Pay-It-Forward program, who give a kidney to someone they don’t know.