Sex reconfigured: DIY hormone therapy and vernacular endocrinology in transfeminine communities in China

Faced with a restrictive institutional medical landscape, trans people in China turn to DIY (Do-It-Yourself) hormone therapy. While existing health literature has studied the risks and impacts of informal hormone therapy, little is known about the practical strategies and the embedded meaning-making processes around hormone-taking on the ground. Building on digital and in-person participant observation conducted in two cities in China and semi-structured interviews with eight transfeminine individuals between 2021 and 2022, this article examines the embodied practices and community knowledge of tinkering with hormones. Specifically, I examine the ways that conventional biomedical notions of efficacy and risk are both enrolled and contested to understand bodily becoming in the community space. Closely engaging with biomedical structures, ideas, and knowledge, trans people challenge and reformulate dominant notions of efficacy, risk, and toxicity. A form of DIY hormone literacy is taking shape in the community, informed by the hands-on engagement with medicine, an affinity with pharmaceuticals, and people's temporal narratives of transition. Throughout these processes, DIY practitioners multiply the materials and imaginations of medicine. They reshape the narrowly-defined biomedical model of sex and enable an alternative onto-epistemology of hormonal sex-gender that is amenable to modification and constantly in flux. Drawing from medical anthropology, science and technology studies (STS), and feminist, queer, and trans studies, this article contributes to the conversation on the politics and poetics of sex-gender and embodied knowledge production in the community space.