Chronic traumatization occupies a pivotal conceptual node in depth-psychological and traumatology literature, marking the decisive threshold between single-incident posttraumatic stress and the more pervasive, structurally reorganizing effects of prolonged, repeated exposure to overwhelming experience. Judith Herman’s foundational formulation establishes the syndrome of chronic trauma as qualitatively distinct: where acute trauma leaves the self feeling temporarily displaced, chronic traumatization effects an insidious, progressive erosion of personality itself. Van der Hart, Nijenhuis, and Steele extend this insight into their structural dissociation model, arguing that chronic traumatization—particularly when it begins in childhood—generates not merely simple PTSD but secondary and tertiary dissociative configurations whose complexity defeats short-term, single-protocol interventions. Courtois and her collaborators situate chronic traumatization within the developmental frame of complex traumatic stress disorders, emphasizing that chronicity during formative years compromises attachment, self-organization, affect regulation, and neurobiological maturation simultaneously. Lanius and colleagues contribute the epidemiological and clinical observation that chronic interpersonal trauma, often beginning in early childhood and extending across development, produces wide-ranging adaptations across relational, somatic, and existential domains. The field’s central tension is diagnostic and nosological: whether chronic traumatization warrants its own diagnostic category beyond PTSD, and whether the resulting clinical pictures—complex PTSD, dissociative disorders, borderline presentations—should be understood as a spectrum or as discrete entities. Treatment consensus converges on phase-oriented, relationally grounded approaches as the necessary response to this level of chronicity.