Causes And Symptoms Of Post Traumatic Stress Disorder . Post-traumatic stress disorder (PTSD) is a disorder that develops in some people who have experienced a shocking, scary, or dangerous event. Posttraumatic stress disorder (PTSD) is a mental disorder that can develop after a person is exposed to a traumatic event, such as sexual assault, warfare, traffic collisions, child abuse. Causes of PTSD explained - Barends Psychology Practice. (Lou Owen) PTSD patients might experience post trauma stress disorder symptoms like becoming very anxious and might even avoid areas, people or even objects that may remind them of the traumatic event. Post-traumatic stress disorder is defined as the anxiety disorder that usually develops after someone experiences a severe trauma that is Many of the symptoms of post-traumatic stress disorder can be explained by the activation of these brain regions. Post-traumatic stress disorder (PTSD) is an anxiety disorder caused by very str...