PTSD can develop after experiencing or witnessing a traumatic event, or after a prolonged traumatic experience. This can include a wide range of traumatic events, but not all people who experience traumatic events will develop PTSD.
What’s the difference between PTSD and trauma? According to the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), a person must have been exposed to “actual or threatened death, serious injury, or sexual violence” in order to be diagnosed with PTSD. Other than that, there is no formal definition for whether something is traumatic enough to cause PTSD. It depends on the person’s interpretation of the event and how long the symptoms last.
So, what makes one person susceptible to PTSD while another person who experienced the same trauma is able to move on over time? There are a number of risk factors that make someone more likely to develop PTSD. For example, if someone suffered from depression or anxiety before the trauma, they may be more likely to experience PTSD. Additionally, if you have a lack of support from family or friends, you may be more prone to developing PTSD.
Research also shows that there may be a genetic factor involved in PTSD. In a large PTSD genetic study, scientists from University of California San Diego School of Medicine, along with over 130 additional institutions who participated in the Psychiatric Genomics Consortium, have found that PTSD has a strong genetic component similar to other psychiatric disorders. The conclusion of the study is that genetics accounts for 5-20% of the variability in PTSD risk following a traumatic event. While more research still needs to be done, the study shows that people with these genes are at a higher potential risk for developing PTSD after traumatic events. However, PTSD is like other mental illnesses and can affect anyone, regardless of their background.
Learn More