Abstract. Studies in patient or community samples suggest that many older adults who experience clinically significant psychopathology do not fit easily into our existing disorder classification systems. This affects older people with traumatic experiences, who in their senescence report multiple mental disturbances and reduced quality of life. Thus, there is a need to develop age-appropriate diagnostic criteria for posttraumatic stress disorder (PTSD). To date, the new ICD-11 has done this only in a very rudimentary way. This article gives a brief historical overview and names the reasons for these diagnostic problems. Subsequently, it proposes six plus one (male-only) features to be dominant and life-stage specific in older adults: posttraumatic nightmares and reenactments, impaired sleep, painful memories of traumatically lost close persons, hypervigilance including elevated startle response, weakness or asthenia, somatoform pain or chronic primary pain, and in males only: reckless or self-destructive behavior. Finally, it outlines future steps to improve the adequate recognition of clinical presentations of trauma sequelae.