By National Catholic Bioethics Center - Gender transitioning, involving behavioral, hormonal, or surgical treatments, or a combination of these, is coming to be broadly accepted as a form of “therapy.” The concept of gender transitioning, however, stands in radical opposition to a proper understanding of the nature of the human person. It presupposes that there is a “self” that is separate from the body, which happens to find itself in a body and which might therefore be in the wrong body.