Healthcare for transgender people is in crisis. Many of the problems stem from bureaucracies within the health system, limiting conceptualizations of sex and gender, and the requirement for a diagnosis of ‘gender dysphoria’. This book presents a unique argument for full demedicalization of transness as a crucial step towards removing existing barriers to good healthcare. Resisting the current norm of separating sex and gender, it also argues for an understanding of them as necessarily interlinked and co-constructed. By elevating trans voices and experiences, this book offers a new perspective on transness, medicalization and research methodologies to help trans people, practitioners and policy makers better understand the barriers faced by trans people when seeking healthcare.