Sexualities of trans and non-binary people during transition, a narrative synthesis implementing a post-humanist framework

Background Sexualities are considered a relevant factor to one’s wellbeing. However, research has often fragmented sexualities into discrete elements. Additionally, research within trans and non-binary (TNB) populations has historically been pathologizing. This systematic literature review is grounded in relational ontology, which prioritizes the interactions between elements, over the analysis of isolated identities Aim The aim of this review is to explore how the sexualities of TNB people change during transition and to understand their experiences of these changes. Methods The literature search was conducted using the databases Scopus, Ebsco, CHINAL Plus, Open Dissertations, and Google Scholar, employing search terms related to TNB sexualities and transition experiences. The review synthesized data from qualitative and mixed-methods studies. Despite some studies’ methodological limitations, the narrative synthesis provided a comprehensive examination of the subject. Results The review found that TNB people’s sexualities are fluid and contextually influenced, often undergoing significant changes during transition. These changes are shaped by complex interactions between individual, social, and relational factors. Discussion The findings highlight the need for further research using diverse methodologies and inclusive recruitment strategies to deepen the understanding of TNB sexualities. This research has implications for enhancing sexual health practices and policies to be more inclusive and supportive of TNB individuals, fostering a more comprehensive understanding of their sexual well-being.