Mental health is a complex and multifaceted domain, profoundly influenced by societal perceptions, structural inequalities, and intersecting social identities. Despite increased global awareness of mental health challenges, pervasive stereotypes continue to shape public attitudes, institutional practices, and individual experiences, often resulting in stigma, discrimination, and inequitable access to care. This study critically examines the role of societal stereotypes in influencing mental health outcomes, with particular reference to the United Kingdom, and explores how complex diversities such as ethnicity, gender, age, and socioeconomic status interact with these stereotypes to shape lived experiences. Drawing on Stigma Theory (Link & Phelan, 2001) and Intersectionality Theory (Crenshaw, 1989), the study situates stereotypes within broader social, cultural, and structural contexts, highlighting their multidimensional effects on mental health and well-being.

A qualitative critical review methodology was employed, analysing peer-reviewed articles, policy documents, and reports from authoritative global and UK-based sources. Thematic analysis revealed that societal stereotypes contribute to internalised stigma, social exclusion, reduced help-seeking behaviour, and diminished psychological well-being. Intersectional factors were found to intensify vulnerability, with ethnic minority groups, women, and socioeconomically disadvantaged populations experiencing compounded effects. Structural and institutional influences, including biased healthcare practices, policy gaps, and media narratives, further reinforced the negative impact of stereotypes. While global and UK research shows a trend toward more inclusive, recovery-oriented narratives, the integration of societal, structural, and intersectional perspectives remains limited.

The study identifies critical gaps in understanding how mental health diversities intersect with societal stereotypes and structural inequalities in the UK context. The findings underscore the need for multidimensional approaches to stigma reduction that integrate public education, policy reform, and culturally responsive interventions. By synthesising theoretical and empirical evidence, the study contributes to advancing inclusive mental health discourse, promoting equity in access to care, and informing evidence-based interventions that address both individual and structural determinants of mental health.