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HomeConditionsPTSD & Trauma-Related DisordersPosttraumatic Stress Disorder
Mental Health Condition

Posttraumatic Stress Disorder

To define Posttraumatic Stress Disorder: PTSD develops after trauma, causing intrusive memories, avoidance, mood changes, and heightened arousal lasting over one month.

Overview

Description

Posttraumatic Stress Disorder (PTSD) is a mental health condition that develops after exposure to actual or threatened death, serious injury, or sexual violence. It is characterized by intrusive memories, avoidance of trauma reminders, negative changes in cognition and mood, and increased arousal. Symptoms persist for more than one month and cause significant distress or impairment.

Prevalence

Lifetime prevalence around 6–8% in the general population, higher in high-risk groups (combat veterans, assault survivors).

Age of Onset

Can occur at any age; higher risk in adolescence and early adulthood after trauma.

ICD-10 Code

F43.1

By HeyPsych Contributor
Reviewed by the HeyPsych Medical Review Board
Reviewed by the HeyPsych Medical Review Board
Board-certified psychiatrists and mental health professionals
Medical Review Board
Published: August 15, 2025
Last Updated: August 25, 2026
Last Reviewed: August 25, 2026

What Is PTSD?

What Is PTSD?

Symptoms

Symptoms

Causes & Risk Factors

Causes & Risk Factors

How It's Diagnosed

How It's Diagnosed

Treatment Options

Treatment Options

Real Life Examples

Real Life Examples

Lived Experience

Lived Experience

Similar Conditions

Similar Conditions

Common Questions

Common Questions

This information about mental health conditions is for educational purposes only. If you believe you may be experiencing symptoms of a mental health condition, please consult with a qualified healthcare professional for proper evaluation and diagnosis.

Get Support

Seeking Help for Posttraumatic Stress Disorder?

If you recognize these symptoms in yourself or a loved one, know that help is available. Mental health conditions are treatable, and connecting with a qualified professional can make a significant difference.
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