Mental health condition triggered by traumatic event. Review possible symptoms, contributing factors, assessment, warning signs and care options.
About Post-Traumatic Stress Disorder
Mental health condition triggered by traumatic event
Post-Traumatic Stress Disorder (PTSD) is a mental health condition triggered by experiencing or witnessing a terrifying event.
Symptoms may include flashbacks, nightmares, severe anxiety, and uncontrollable thoughts about the event.
Editorial update (28 September 2026): structured medical content awaits clinical reviewer sign-off.
How assessment may be approached
A qualified clinician may ask about mood, anxiety, sleep, appetite, functioning, medicines, substances, trauma, physical contributors and personal safety. Assessment is private and aims to understand the pattern before naming a diagnosis.
Options may include psychotherapy, practical support, treatment of contributors, medication when clinically appropriate, safety planning and follow-up. Do not stop prescribed psychiatric medicine without the prescriber's advice.
When to seek prompt care
Seek immediate local emergency or trusted-person support for thoughts, intent or plans of self-harm or harming others, severe agitation, inability to stay safe, psychosis, severe intoxication or inability to meet basic needs.
Symptoms
- Intrusive memories
- Flashbacks
- Nightmares
- Avoidance
- Negative mood changes
- Hyperarousal
- Emotional numbness
Possible causes
- Traumatic events
- Combat exposure
- Physical assault
- Accidents
- Natural disasters
Care and treatment options
- Trauma-focused therapy
- EMDR
- Medication
- Group therapy
- Support groups
Key points
- Affects 3-4% of adults
- Can develop at any age
- Not a sign of weakness
- Treatment can be very effective
Preparing for a consultation
- How long symptoms have lasted and what has changed.
- Sleep, appetite, work, relationships and daily functioning.
- Medicines, substances, trauma and physical illness.
- Any safety concerns, urgent warning signs or support available.
Questions worth asking
- Is Post-Traumatic Stress Disorder the most likely explanation for these symptoms, and what alternatives should be checked?
- Which symptoms or findings would require urgent review?
- Are medicines, underlying health problems or lifestyle factors contributing?
- What tests or examinations are needed now, and what can safely wait?
- What treatment or self-care options are reasonable, and when should I be reviewed again?
- What is the expected benefit, limit, cost and follow-up plan for the suggested care?
Related conditions
Related clinicians
Medical information limitations
This page summarizes listed condition information and cannot confirm a diagnosis or choose treatment. Do not start, stop or change prescribed treatment based only on this page.
Common questions
What is Post-Traumatic Stress Disorder?
Mental health condition triggered by traumatic event This is general information; the name describes a possible diagnosis or clinical problem, not a personal diagnosis.
How might a clinician assess Post-Traumatic Stress Disorder?
A qualified clinician may ask about mood, anxiety, sleep, appetite, functioning, medicines, substances, trauma, physical contributors and personal safety. Assessment is private and aims to understand the pattern before naming a diagnosis.
What care may be discussed?
Care options listed include Trauma-focused therapy, EMDR, Medication, Group therapy. Which option is appropriate depends on the confirmed cause, severity, preferences and contraindications.
When should Post-Traumatic Stress Disorder be checked urgently?
Seek immediate local emergency or trusted-person support for thoughts, intent or plans of self-harm or harming others, severe agitation, inability to stay safe, psychosis, severe intoxication or inability to meet basic needs.
How should I prepare for a consultation?
How long symptoms have lasted and what has changed. Sleep, appetite, work, relationships and daily functioning. Medicines, substances, trauma and physical illness. Any safety concerns, urgent warning signs or support available. Bring previous reports and a current medicine list where relevant.
Can this page diagnose or treat the condition?
No. A page about Post-Traumatic Stress Disorder can help you understand possible features and questions, but it cannot confirm a diagnosis or choose treatment. A qualified clinician should assess your symptoms, history and any test results.
General information only; it is not a diagnosis or a substitute for a qualified clinician’s advice.