AbstractThe biopsychosocial model is currently considered by most researchers and clinicians to be the best approach to low back pain (LBP) care. The model was popularised in LBP care in response to some clear deficiencies in earlier biomedical approaches and is now widely recommended in clinical guidelines and policy statements. Yet the biopsychosocial approach has also been critiqued for its narrow conceptualisation and application. In this article, we explore how attending to the multidimensionality of LBP in practice goes beyond a biopsychosocial approach. We engaged with 90 ethnographic observations of clinical practices, 22 collaborative dialogues with clinicians, and eight consultatory meetings with people with experience of LBP to consider the sociomaterialities of clinical practices in two settings: a private physiotherapy practice and a public multidisciplinary pain clinic. Drawing on the work of Annemarie Mol and Rosi Braidotti, our analyses suggest that sociomaterial practices, involving human and non‐human actors, produced multiple objects of clinical attention and ethical concerns about how to attend to this multiplicity well. We argue that the multiplicity of LBP is attended well by reimagining: (1) clinical settings as ‘becoming more‐than‐sterile environments’ where objects, furniture and elements such as tears and laughter help to provide a relational, welcoming and comfortable space to all bodies with LBP; (2) differences through ‘becoming minoritarian’ where considering power relations allows actions towards connectiveness and belonging; and (3) disciplinary boundaries through ‘becoming interdisciplinary within’ where actions expand traditional scopes of practice. The flux of these multiple becomings moves clinical practice and conceptualisations beyond the biopsychosocial approach to consider a new ethico‐onto‐epistemological approach to LBP care. They invite clinical practices that engage with an ethical multiplicity of LBP care, providing a better understanding of how places, objects, emotions, power, bodies and professions are interconnected and come together in everyday practice.