Social construction of biological sex is more than an abstract observation: it is a physical reality that many intersex people go through. Because society makes no provision for the existence of people whose anatomical characteristics do not neatly fit into male or female, they are routinely mutilated by medical professionals and manipulated into living as their assigned sex. Intersex people are usually not given an opportunity to decide for themselves how they wish to live and whether or not they want surgical or hormonal “correction.” Many intersex people find it appalling that they had no say in such a major life decision, whether or not their gender identity happen to match their assigned sex. We believe that genital mutilation of intersex children is inherently abusive because it unnecessarily violates the integrity of their bodies without proper consent. The issue is not even whether or not the sex one was assigned matches her or his gender identity; it is whether or not intersex people are given real choice over what happens to their bodies. Trans people feel dissatisfied with the sex assigned to them without their consent according to the simplistic medical standard. Trans people are diverse: some identify and live as members of the sex different from what was assigned to them by medical authorities, either with or without medical intervention, while others identify with neither or both of male and female sexes. Trans liberation is about taking back the right to define ourselves from medical, religious and political authorities. Transfeminism views any method of assigning sex to be socially and politically constructed, and advocates a social arrangement where one is free to assign her or his own sex (or non-sex, for that matter).