The anthropological tradition has been dealing with this question since the 19th century and continues today with new objects and subjects. One of them is the trans body. For decades, ‟sex change” has been tackled by discourse as a psychopathology; this conception has vanished away, like that of homosexuality, but no new explanation was conjured up. In this context, previous to the question of what sex and gender are, we interrogate the multiple body constructions, from one ontological area to another, in order to achieve a general resignification of lives in resignified social bonds.