Inclusion Criteria:  PTSD according to DSM-5 criteria (American Psychiatric Association, 2013) as a primary problem have basic knowledge of speaking and writing in Swedish, not undergo other psychological treatment for PTSD during the course of the study; be at least 18 years old not be exposed to ongoing violence or threats if antidepressants for depression / anxiety are available, the dose must have been stable for at least 6 weeks before starting treatment.  Patients who express an interest in participating receive information about the study. Patients who subsequently carry out the assessment and meet the inclusion criteria receive accurate oral and written information about what participation includes and handling of personal data and data. If the patient wants to participate and gives written consent, the person is included in the study.  Exclusion Criteria:  -