Complex PTSD
A condition, typically after prolonged or repeated trauma that was hard to escape (such as childhood abuse or domestic violence), with PTSD symptoms plus lasting difficulties in emotion regulation, a sense of self as worthless or defective, and trouble sustaining relationships. It appears in ICD-11 but not in DSM-5-TR.
What drives it
When danger came from people one depended on, the whole self is shaped around survival, not just a fear memory: shame, vigilance about others' moods and distrust become part of character.
How it shows
Work
Highly reactive to criticism or perceived disrespect; deep shame after small mistakes; difficulty trusting managers; over-functioning or disappearing under stress; fawning to powerful people. Can be extremely capable but chronically on edge.
Relationships
Intense attachment and pulling away; difficulty feeling close even when safe; expecting betrayal; collapsing into self-loathing after conflict; 'emotional flashbacks' where a present situation brings a flood of old feelings without clear memory.
Self
A background feeling of being fundamentally flawed, emotions that go from zero to overwhelming, sudden drops into helplessness or terror without obvious cause, distrust of your own reactions.
What tells it apart
Post-traumatic stress disorder (PTSD): PTSD can occur with intact self-worth and relationships; in complex PTSD the shame, emotional swings and relationship difficulty persist even when no reminders are present.
Borderline personality: Both feature emotion swings and relational difficulties; in complex PTSD self-image is stably negative and the person tends to withdraw, whereas in borderline personality self-image is unstable and there is more fear of abandonment and impulsive self-harm.
Trauma (big T and small t): Trauma is the event and its effect; complex PTSD is a specific, lasting pattern after prolonged trauma, and most people with difficult histories do not meet it.
A test
Look for a history of prolonged, inescapable harm together with stable shame, emotional swings and relationship problems even in safe settings; refer to a trauma-trained clinician for assessment.
Questions to carry
- Even in settings that are safe now, which old vigilance about other people’s moods still shows?
- Where do I feel safe enough to stop watching other people’s moods, and who is there with me?
How strong the research is
moderate. Recognised as a diagnosis in ICD-11 and supported by research separating it from PTSD, but not recognised in DSM-5-TR, and its overlap with borderline personality disorder is debated.
Where it comes from
Judith Herman, 1992; ICD-11, 2019; Marylene Cloitre and colleagues, 2013
Sources
- Judith Lewis Herman, Trauma and Recovery (1992)
- Pete Walker, Complex PTSD: From Surviving to Thriving (2013)