Trauma and Autism: A Scoping Review of the Literature

Research on trauma in autistic individuals has proliferated in recent years. This scoping review aims to (1) provide a comprehensive overview of the literature on trauma and autism, (2) identify and synthesize key themes, and (3) highlight gaps to inform future research. Following Arksey and O’Malley’s (2005) methodological framework and the PRISMA-ScR guideline and checklist (Tricco et al. 2018), we included articles published after 2000 in French or English that explicitly addressed trauma in autistic individuals. Four databases were searched: PsycINFO, Medline, ERIC, and Web of Science. A two-phase selection process yielded 199 eligible studies. Descriptive analyses and collaborative theme development were conducted to map the field. Findings show that most studies were published between 2018 and 2024, with the United States contributing the largest proportion. Four major themes were identified: (1) the relationship between autism and trauma, including prevalence, vulnerability, and consequences; (2) trauma-related symptoms and clinical manifestations; (3) assessment practices; and (4) intervention strategies. This review offers a critical synthesis of current knowledge, emphasizing the need for approaches that use broader definitions of trauma and reflect the diversity and lived experiences of autistic individuals. It also identifies significant methodological and conceptual gaps, calling for future research that addresses subgroup diversity and promotes equitable, trauma-informed practices for autistic individuals.