Could your body accept its old organ without anti-rejection medication after it's been in another body?
I realize that this isn’t a likely scenario but…
Suppose you donated a kidney to a friend and later had renal problems and you had to have your remaining kidney removed. Your friend is heading to the hospital to visit you and on the way is fatally injured in an automobile accident. It just so happens he was carrying a donor card. So you end up with your old kidney back. Do you need to take anti-rejection drugs since it’s been in another body or are you spared this as it once was a part of you?
This question is in the General Section. Responses must be helpful and on-topic.