Mental Health Stigma in Japan: A Scoping Review of Causes, Impacts, and Intervention Strategies

Abstract

Background: Mental health stigma is a critical global public health issue that hinders access to care and social reintegration. In Japan, stigma is particularly strong due to unique socio-cultural dynamics, including strong conformity, collectivism, and the perception of mental illness as a 'family issue.'

Objective: This scoping review assesses the causes, contributing factors, health impacts, and existing intervention strategies related to mental health stigma in Japan, aiming to illuminate the current state and persistent challenges.

Methods: Following the PRISMA-ScR guidelines, major international and regional databases, including MEDLINE and Embase, were systematically searched. 216 studies across various mental health conditions were included.

Results: Mental health stigma in Japan manifests as self-stigma, public stigma, and structural stigma, all hindering help-seeking. Key contributors include low literacy, cultural conformity norms, biased media representation, and the strong maintenance of social distance. Stigma significantly predicts anxiety, depression, and distress, even when controlling for confounders. It results in reluctance to seek professional help, worsening Quality of Life (QoL), increased depressive symptoms, and specific outcomes such as depersonalization in burnout. Regarding interventions, renaming conditions has been linked to reduced stigma and improved diagnosis disclosure. While most programs show short-term improvements in knowledge, the evidence quality is low, and long-term effects remain unclear. Social contact interventions are promising for improving attitudes and reducing social distance. Culturally appropriate adaptations and community-based support are crucial.

Conclusions: Stigma represents a severe barrier to mental health care in Japan, strongly impacting well-being, QoL, and treatment adherence. An urgent whole-systems approach is required, prioritizing: (1) Tailored public education and literacy campaigns to address specific knowledge gaps; (2) Non-educational strategies focusing on structural change and mitigating self-stigma to promote help-seeking; and (3) Development of culturally appropriate and locally adapted interventions that effectively navigate Japanese social norms.