Transplant
To dream of an organ transplant represents an aspect of yourself that is being renewed or given a second chance. Old ways of thinking or feeling have worn out. A new lease on life or a situation. You may have been given a fresh start or new beginning. You may be adjusting to a new situation,
Consider the specific organ for additional meaning.
It's common for people in new relationships to dream of getting new feet, legs, hearts, or heads.