Definition: Anything that brings about a symptom of PTSD. For example, a news story about the Iraq War may cause a veteran with PTSD to have thoughts and memories about the war. Triggers may include people, places, sounds, words, and/or smells.
By Matthew Tull, PhD, About.com Guide
Updated: May 27, 2008
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
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