the medical and social models of autism both focus on external behaviours - either by trying to fix them or by adjusting the environment. Both, however, miss a crucial piece: the internal experience and trauma in autism. All autistic individuals have sensory challenges, which can create significant distress, developmental disharmony and, over time, trauma. This trauma isn’t always sensory-based; social exclusion, unmet needs and constant overwhelm also play a role. In this article, I explore why sensory healing should come first, how trauma shapes autistic development and why behaviour-based approaches often fail when the nervous system remains disregulated.