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PTSD is marked by clear biological changes as well as psychological symptoms. PTSD is complicated by the fact that people with PTSD often may develop additional disorders such as depression, substance abuse, problems of memory and cognition, and other problems of physical and mental health.
Tests and diagnosis. Post-traumatic stress disorder is diagnosed based on signs and symptoms and a thorough psychological evaluation. Your health care provider will likely ask you to describe your signs and symptoms and the event that led up to them.You may also have a physical exam to check for medical problems.ou experience one or more of the following signs or symptoms after the traumatic event: 1  You relive experiences of the traumatic event, such as having distressing images and memories. 2  You have upsetting dreams about the traumatic event. 3  You experience flashbacks as if you were experiencing the traumatic event again.