Single incident trauma is associated with post-traumatic stress disorder (PTSD). Survivors of complex trauma may experience PTSD and are at increased risk of PTSD. Yet the impacts of complex trauma are more extensive and debilitating than those of PTSD alone.
People with complex trauma often develop complex post-traumatic stress disorder (C –PTSD). This is to be included in the upcoming ICD11. The new diagnosis clarifies the differences in impacts between PTSD and C-PTSD. Differences in treatment have already been recommended (Courtois & Ford, 2009; van der Kolk, 2003).