Posttraumatic Stress Disorder (PTSD)
Posttraumatic stress disorder (PTSD) is a psychiatric disorder that can occur after exposure to a traumatic event such as actual or threatened death, serious injury or violence.
You can be exposed to traumatic events directly, or by witnessing or responding to the event, or learning that a relative or close friend/colleague was exposed, or through repeated exposure to details of the traumatic event and thoughts or memories of these events can seriously affect your life long after the event.
You may be at risk for PTSD if you have been exposed to a traumatic event, and you have experienced symptoms of intrusion, hyper-arousal, avoidance, or negative cognitions and mood, and symptoms last for more than 1 month, and symptoms create distress or impact your life.
PTSD Symptoms
INTRUSION SYMPTOMS
You persistently re-experience the traumatic event through:
recurring, unwanted distressing memories
flashbacks/reliving the event as if it were happening again
nightmares/upsetting dreams about the event
severe emotional distress or physical reactions (heart racing, hands sweating) to something that reminds you of the event
HYPER-AROUSAL SYMPTOMS
You experience new or increased arousal and reactivity, such as:
irritability or aggression
risky or destructive behavior
hyper-vigilance
heightened startle reaction
difficulty concentrating
difficulty sleeping
Ref.:
Diagnostic and Statistical Manual of Mental Disorders, 5th ed. Washington, DC, American Psychiatric Association, 2013
AVOIDANCE
You avoid trauma related stimuli after the trauma by:
trying to avoid thinking about the event
avoiding places, objects, activities or people that remind you of the trauma
NEGATIVE COGNITIONS AND MOOD
You develop negative thoughts or feelings that began or worsened after the trauma, such as:
inability to recall key features of the traumatic event
overly negative thoughts and assumptions about oneself or the world
exaggerated blame of self or others for causing the trauma
negative affect
decreased interest in activities
feeling isolated
difficulty experiencing positive affect