This research starts from concerns in the psychologycal clinic about its confabulations around the human body and health. Having the portrait of the body being marked by the limitations of physical materiality, one finds, in the experiences of transvestites, transexual women and trans men, other possibilities of understending the body. Therefore, this research is guided by the question: What has been the experience of transvestites, transexual women and trans men, regarding their corporalities, and what care experiences does this population requires? Thus, this work aims to understand how it would be possible to think in a clinical and political action from the encounter with narratives of transvestites, transexual women and trans men. For this, starts from the experiences of three transexual/transvestite people about their corporalities, witnessed through the resource of historybiograph. Understands, from a existencial phenomenologycal reading, that through the encounter with the body, other possibilities arise, regarding the experiences of gender identities, sexuality and sexual orientations. This work proposes do consider that it is in the body that the politization of existence process takes place, since it is from the body that concrete and psychologycal phenomena begin and have their endings, demarcating the place of diversity and multiplicity of the trans / transvestite body. The referral of such questions reveals the paths of exclusion, or rather, precarious inclusion, announcing and denouncing violent practices in health and education. The (in) visibility of these bodies (dis) appears in the institutions, in particular in health care ones, which come to understand them through a physical changing via technological resources (such as the use of hormones and surgeries redesignadoras). Thus, the thesis discusses the social transition of trans / transvestite bodies as marked by the transformative power communicability, dodging a medical-scientific tutelage. This way, this work questions the place of psychology in face of dissident existences, approaching the construction of a clinical action that is made together with politics. Such provocation incites questions in the field of psychological clinic, refuting a "production" of a psychological subject or a subject of psychology. Such provocation incites questions in the field of psychological clinic, refuting a "production" of a psychological subject or a subject of psychology. In this sense, one realizes the more psychology oriented by the approach to medicine, the more it loses its political function directed to human care. It therefore considers that the cries of transexual and transvestite corporalities sinalizes that the model of psychology, as a science, is flawed for its conjuctures and comprehensions about the experiences of different bodies, revealing the breakdown between power and violence in their practices.