PTSD
PTSD (post-traumatic stress disorder) is a trauma-related condition that can develop after exposure to actual or threatened death, serious injury, or sexual violence, with symptoms such as flashbacks, avoidance, negative mood changes, and hypervigilance lasting more than one month.
Definition
Post-traumatic stress disorder involves persistent trauma-related symptoms that cause distress or impairment after a qualifying traumatic event. Screening tools like the PCL-5 measure symptom clusters aligned with DSM-5 criteria but cannot confirm PTSD without clinical interview. Many people have trauma reactions that improve with time and support; PTSD is diagnosed when symptoms are severe and persistent.
What it can feel like
- Intrusive memories, nightmares, or flashbacks of a traumatic event.
- Avoiding places, people, or conversations that trigger reminders.
- Feeling constantly on guard or easily startled.
- Persistent negative beliefs about yourself or the world after trauma.
Related glossary terms
سؤالات متداول
Can PTSD develop after any stressful event?
PTSD is linked to specific types of trauma in diagnostic manuals. Other stress responses are real and treatable even when they do not meet full PTSD criteria.
What PCL-5 score suggests further evaluation?
A total score of 31 or higher is commonly used as a PTSD screening cutoff (some settings use 33). Your clinician interprets scores in context.
Is PTSD treatable?
Yes. Evidence-based trauma therapies can reduce PTSD symptoms significantly. Screening helps identify when professional support may be appropriate.
Sources
- Weathers FW, et al. PCL-5 for DSM-5
- National Center for PTSD — symptom overview
Last reviewed: 2026-07-02. Screening tools on LuriaLab are for education only and do not provide a diagnosis.