Irritable bowel syndrome (IBS) is a prevalent health challenge in a Danish welfare context. Drawing on ethnographic fieldwork at two Danish gastroenterology clinics, and inspired by Charles E. Rosenberg's idea of styles of explaining widespread diseases, we outline three styles of understanding and treating gut trouble in daily clinical work: "The microbial gut," "the mindful gut," and "the lifestyled gut." Moreover, we suggest the concept of fluidity to characterize IBS as a diagnostic category that allows clinicians and patients to operate through complex understandings of permeable boundaries between body, mind, and environment to negotiate personalized solutions for embodied gut sensations.
Keywords: Denmark; diagnostic practices; fluidity; gut; irritable bowel syndrome; medically unexplained symptoms.