Glossary
Complex PTSD (C-PTSD).
Complex post-traumatic stress disorder is the diagnostic category for the trauma-response cluster produced by prolonged exposure to interpersonal abuse from which escape is difficult or impossible. It is distinct from classical PTSD in shape and is the most common diagnosis among adults presenting for therapy after long-term covert narcissistic abuse.
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Definition
The concept was articulated most influentially by the psychiatrist Judith Herman in her 1992 book Trauma and Recovery. The World Health Organization formally adopted complex PTSD as a distinct diagnosis in the ICD-11 (effective 2022). It is not yet a standalone DSM diagnosis, though the DSM-5 PTSD criteria have been broadened in ways that capture some of the same material.
The ICD-11 criteria require all three classical PTSD symptom clusters — intrusion (flashbacks, nightmares), avoidance (of trauma reminders), and a sense of current threat (hyperarousal, hypervigilance) — plus a second tier of disturbances in self-organization:
- Affective dysregulation — heightened emotional reactivity, difficulty modulating, sometimes emotional numbing.
- Negative self-concept — persistent beliefs of worthlessness, defectiveness, shame, guilt.
- Disturbances in relationships — difficulty feeling close to others; avoidance of relationships.
Why long covert abuse produces it
Three reasons converge. The abuse is sustained over years. Escape is difficult because of entanglement and the addictive properties of intermittent reinforcement. And the abuse is identity-targeting: the perpetrator's project is to revise the survivor's sense of who they are, what is real, and what they are entitled to perceive. The trauma of being persistently told that one's perceptions are wrong does specific damage to the apparatus that produces perceptions in the first place.
Treatment and recovery
Treatment with reasonable evidence behind it includes trauma-focused cognitive-behavioral therapy (TF-CBT), EMDR (Francine Shapiro's protocol), Internal Family Systems (IFS), and somatic approaches (Peter Levine's Somatic Experiencing, the broader body of work building on Bessel van der Kolk). Pete Walker's framework — articulated in Complex PTSD: From Surviving to Thriving — is not an evidence-based protocol per se but is widely used and unusually clear on the relational dynamics.
Where this appears on the site
The full treatment of C-PTSD, including the three-phase Herman recovery model and what to look for in a therapist, is on the recovery/c-ptsd page.
