Posttraumatic stress disorder is an anxiety disorder in which fear and related symptoms are experienced soon after a traumatic event and last for about a month.

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Posttraumatic stress disorder (PTSD) is a psychiatric disorder that may occur in people who have experienced or witnessed a traumatic event. Symptoms must last more than one month and can last years, significantly impairing the person's daily life.

Posttraumatic Stress Disorder Is an Anxiety Disorder in Which Fear