Daniel Eun, director of robotic urologic oncology and reconstruction at Temple University Hospital, says doctors can and sometimes do operate — even remove kidneys — through the belly button, making the scar almost invisible. It’s not always the best option, he notes, as the size of the incision makes the procedure more difficult, and it’s not recommended for all cases, including when there’s cancer. But if the organ is healthy and being donated, removing it through the belly button could work well and keep the abdomen scar-free.