Post-traumatic stress disorder (PTSD)

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Causes

By Mayo Clinic staff

You can develop post-traumatic stress disorder when you go through, see or learn about an event that causes intense fear, helplessness or horror.

Doctors aren't sure why some people get post-traumatic stress disorder. As with most mental health problems, PTSD is probably caused by a complex mix of:

  • Your inherited mental health risks, such as an increased risk of anxiety and depression
  • Your life experiences, including the amount and severity of trauma you've gone through since early childhood
  • The inherited aspects of your personality — often called your temperament
  • The way your brain regulates the chemicals and hormones your body releases in response to stress
Risk factors Symptoms
References
  1. Posttraumatic stress disorder. In: Diagnostic and Statistical Manual of Mental Disorders DSM-IV-TR. 4th ed. Arlington, Va.: American Psychiatric Association; 2000. http://www.psychiatryonline.com. Accessed Jan. 5, 2011.
  2. Posttraumatic stress disorder. In: Hales RE, et al. The American Psychiatric Publishing Textbook of Psychiatry. 5th ed. ArlingtonWashington, D.C.: American Psychiatric Publishing; 2008. http://www.psychiatryonline.com. Accessed Jan. 5, 2011.
  3. Shalev AY. Posttraumatic stress disorder and stress-related disorders. Psychiatric Clinics of North America. 2009;32:687.
  4. Practice parameter for the assessment and treatment of children and adolescents with posttraumatic stress disorder. Journal of the American Academy of Child & Adolescent Psychiatry. 2010;4:414.
  5. May AC, et al. Posttraumatic stress disorder In: Ferri FF. Ferri's Clinical Advisor 2011: Instant Diagnosis and Treatment. Philadelphia, Pa.: Mosby Elsevier; 2011. http://www.mdconsult.com/books/page.do?eid=4-u1.0-B978-0-323-05610-6..00025-1--sc30645&isbn=978-0-323-05610-6&type=bookPage&sectionEid=4-u1.0-B978-0-323-05610-6..00025-1--sc30645&uniqId=230982534-3. Accessed Jan. 5, 2011.
  6. Holzer SR. Mediational significance of PTSD in the relationship of sexual trauma and eating disorders. Child Abuse & Neglect: The International Journal. 2008;32:561. http://www.mdconsult.com/das/citation/body/230982534-5/jorg=journal&source=MI&sp=20885418&sid=1101209736/N/20885418/1.html?issn=0145-2134. Accessed Jan. 5, 2011.
  7. Understanding PTSD. National Center for PTSD. http://www.ptsd.va.gov/public/understanding_ptsd/booklet.pdf. Accessed Jan. 5, 2011.
  8. Nakell L. Adult post-traumatic stress disorder: Screening and treating in primary care. Primary Care: Clinics in Office Practice. 2007;34:593.
  9. Acupuncture may help symptoms of posttraumatic stress disorder. National Center for Complementary and Alternative Medicine. http://nccam.nih.gov/research/results/spotlight/092107.htm. Accessed Jan. 5, 2011.
  10. Coping with traumatic stress reactions. National Center for PTSD. http://www.ptsd.va.gov/public/pages/coping-traumatic-stress.asp. Accessed Jan. 12, 2011.
  11. Hall-Flavin DK (expert opinion). Mayo Clinic, Rochester, Minn. Jan. 11, 2011.
DS00246 April 8, 2011

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