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INTRODUCTION

In a context characterized by growing vulnerabilities, fragmented trajectories, and overstretched specialized services, mental health now occupies a central place in the field of public health. This article examines the contribution of non-specialized services to public mental health in situations of cumulative vulnerability.

METHODS

This article is based on an inductive qualitative study resulting from a collective research process conducted in preparation for a symposium devoted to “working together” in public mental health. A comparative analysis was carried out across four non-specialized settings: a collaboration between a community-based organization and a Mobile Psychiatry Outreach Team, medical respite care facilities, a community legal clinic supporting migrants, and a high school classroom. A syndemic approach was used to analyze the interconnections between vulnerabilities.

RESULTS

The findings reveal trajectories characterized by repeated and cumulative disruptions, alongside everyday practices implemented by non-specialist actors. These practices fulfill essential functions of continuity, mediation, meaning-making, and support for agency. However, they also reveal the effects of fragmentation and saturation across service systems.

DISCUSSION: Public mental health is largely produced within ordinary settings, at the interfaces between specialized services and everyday environments. This article invites a re-examination of public mental health by recognizing and supporting cross-cutting, territorially grounded practices operating within public action, as well as in everyday and civic life.