High Quality Content by WIKIPEDIA articles! Complex post-traumatic stress disorder (C-PTSD) is a psychological injury that results from protracted exposure to prolonged social and/or interpersonal trauma in the context of either captivity or entrapment (a situation lacking a viable escape route for the victim), which results in the lack or loss of control, helplessness, and deformations of identity and sense of self. C-PTSD is distinct from, but similar to, post-traumatic stress disorder (PTSD), somatization disorder, dissociative identity disorder, and borderline personality disorder.