Introduction Students enter the 'figured world' of medical school with preconceptions of what it means to be a doctor. The meeting of these early preconceptions and their newly developing identities can create emotional tensions. The aim of this study was to advance our understanding of how such tensions were experienced and managed. Using figured worlds as a theoretical framework we explored students' interactions of preconceptions with their newly developing professional identities in their first year at medical school. Advancing our understanding of this phenomena provided new insights into the complex process of identity formation. Methods This was a qualitative study underpinned by a constructivist epistemology. We ran biannual focus groups with 23 first year students in one UK medical school. Data were recorded, transcribed and then template analysis used to undertake an inductive, iterative process of analysis until it was considered the template provided a detailed representation of the data. Results Significant preconceptions associated with the identity of a doctor were 'to help' and 'to be a leader'. These early preconceptions were in conflict with realities of the figured world of medical school creating the emotional tensions of 'being unable to help' and 'lacking power', with implications for interactions with patients. By the end of year one students' negotiated tensions and 'self-authored' their identity as a learner as opposed to an imagined 'as if' identity of a doctor. Discussion We revealed how preconceptions associated with becoming a doctor can conflict with a newly developing professional identity highlighting the importance of supporting students to embrace the formation of a 'learner' identity, a necessary part of the process of becoming a doctor. ing identities can create emotional tensions hindering rather than helping the development of a professional identity. We revealed how these preconceptions conflict with a newly developing professional identity throughout the first year of medical school. Our findings highlight the importance of educators supporting students to embrace the formation of a 'learner' identity early on in medical school, as this is a necessary part of the process of becoming a doctor. Keywords Medical students · Qualitative research · Professional identity formation · Emotion · Figured worlds What this paper adds

Context To earn society's trust, medical students must develop professional values and behaviours via a transformative process, from lay person to doctor. Yet students are expected to epitomise the values and behaviours of a doctor from the outset of medical school, leading them to feel ‘judged all the time’ (in terms of their professionalism). Our aim, therefore, is to extend knowledge exploring the expectations communicated to and perceived by medical students and to provide a conceptually framed understanding of students’ associated emotional tensions. Methods We used a qualitative exploratory case study methodology within a constructivist paradigm to explore the messages communicated about professionalism and students’ perceived expectations of professionalism in one medical school. Data were collected in the form of: (i) regulatory and medical school documents, and (ii) focus groups with 23 participants in their first 2 years at medical school. We used thematic analysis for data interpretation and two theoretical lenses, Amalberti et al.'s framework of system migration for health care and Sinclair's adaptation of Goffman's dramaturgical theory, to critically analyse the results. Results We found messages and perceived expectations of knowledge and competence, and the need to ensure trust. We also identified that the expectations of patients, doctors, society, family and friends are just as, if not more, influential than policy and regulatory expectations for early years’ medical students. Moreover, we found tensions, with students feeling that the expectations of them from others were unrealistic for their level of training. With this came a sense of pressure to meet expectations that participants responded to by acting as if already competent. Conclusions Our findings suggest that external forces (expectations) drive early years’ students to act as if competent. Although this is part of student identity formation it could also have implications for patient safety and therefore necessitates recognition and support from educators.