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Post-traumatic stress disorder (PTSD)

🧠 Psychology By CampusDown Wiki Editorial Team Last updated
PTSD is a mental disorder in which re-experiencing, avoidance and hyperarousal persist for over a month after a traumatic event.
Contents
  1. 1. Overview
  2. 2. Frequently asked questions
  3. 3. References

Overview

PTSD can follow exposure to actual or threatened death, serious injury or sexual violence. DSM-5-TR clusters: intrusion, avoidance, negative changes in cognition and mood, and arousal and reactivity, lasting more than one month (3 days–1 month is acute stress disorder). NICE (NG116) recommends trauma-focused CBT and EMDR. Many people recover; some report post-traumatic growth.

📌 At a glance
Korea
109 (suicide prevention), 1577-0199 (mental health crisis)
US
988 Suicide & Crisis Lifeline
UK/Ireland
Samaritans 116 123
Emergency
Local emergency number

This article is general information, not a diagnosis or medical advice. If you are concerned, please consult a qualified health professional.

Frequently asked questions

Does everyone develop PTSD after trauma?
No; most people recover from initial stress reactions.

References

  1. American Psychiatric Association. (2022). DSM-5-TR.
  2. National Institute for Health and Care Excellence. (2018). Post-traumatic stress disorder (NICE guideline NG116).
  3. World Health Organization. (2019). ICD-11: 6B40 Post traumatic stress disorder.
  4. 국가트라우마센터. 트라우마 정보.

Reports and materials that use this theory (Korean)

There are no materials dedicated to this theory yet, but you can search related reports in the CampusDown library (Korean).

Find more reports · Search '외상후 스트레스 장애' on CampusDown →
Post-traumatic growthWhat is post-traumatic growth? The definition, Tedeschi and Calhoun’s Posttraumatic Growth Inventory (PTGI) and five domains of growth, how growth unfolds through deliberate rumination, how it differs from PTSD and resilience, cautions, and where to get help.🧠 PsychologyPanic disorderWhat panic disorder is, common panic attack symptoms, anticipatory anxiety and avoidance, known contributing factors, evidence-based treatments such as CBT and medication, coping during an attack, and helplines.🧠 PsychologyResilienceWhat is resilience in psychology? The definition, Emmy Werner’s 40-year Kauai Longitudinal Study of at-risk children, Ann Masten’s "ordinary magic," individual, family and community protective factors, ways to build resilience and common myths.🧠 PsychologyCompassion fatigueCompassion fatigue is emotional and physical exhaustion that reduces the capacity for empathy in people repeatedly exposed to others’ suffering or tra🧠 Psychology

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This article was last updated on October 24, 2026. It is based on widely recognized original works and textbooks; when citing it in a paper, please check the original sources listed in the references.