There are 4 criteria for diagnosis, they are: 1. Re-experiencing the trauma repetitive memories (or flashbacks) that are hard to control and intrude into everyday life nightmares extreme distress caused by reminders of the trauma memories or disturbing thoughts that can be prompted by smells, sounds, words or other triggers. 2. Avoidance staying away from places, people or objects that may trigger memories of the traumatic event changing a normal routine to avoid triggering memories not wanting to talk about or think about the event feeling numb. 3. Negative thoughts and mood feeling a sense of hopelessness about the future negative beliefs about oneself or the world blaming oneself or others unreasonably intense worry, depression, anger or guilt loss of memory of the traumatic event no longer enjoying favourite activities becoming emotionally detached from others inability to experience positive emotions. 4. ?? http://www.myenvisionedmind.com/
In order to be diagnosed with PTSD, a person must have three different types of symptoms: reexperiencing symptoms, avoidance and numbing symptoms, and arousal symptoms. Re-experiencing symptoms are symptoms that involve reliving the traumatic event. There are a number of ways in which people may relive a trauma.