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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.
Posttraumatic Stress Disorder (PTSD) can occur after you have been through a traumatic event. A traumatic event is something terrible and scary that you see, hear about, or that happens to you, like: 1  Combat exposure. 2  Child sexual or physical abuse. 3  Terrorist attack.hildren can have PTSD too. They may have symptoms described above or other symptoms depending on how old they are. As children get older, their symptoms are more like those of adults.