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Mental Health

Post-Traumatic Stress Disorder


Author: Canadian Mental Health Association, BC Division


You’re driving down the highway, the road is wet and cars keep racing past you, splashing water on to your windshield. Suddenly you lose control of the car and feel the car plummeting down an embankment. You hear glass breaking, metal screeching and feel searing pain all over your body. You open your eyes and realize that you’re sitting in your cubicle at work on a sunny Tuesday. You’ve just relived the car accident you were in two months ago for the hundredth time since it happened.

People are strong, but this kind of trauma can be overwhelming. After a traumatic event like a car accident or crime, some people continue to relive the experience through flashbacks and other challenges. It can impact their lives in a big way. This is called post-traumatic distress disorder, and it’s a form of mental illness.

What is it?

Post-traumatic stress disorder (sometimes just called 'PTSD') is a type of anxiety disorder that can appear after a traumatic event. Traumatic events can include:

Natural disasters, such as

  • Hurricane

  • Earthquake


  • Rape or physical assault (including childhood abuse and relationship violence)

  • Burglary, mugging or hold-up


  • Military combat or peacekeeping

  • War crimes

  • Torture

  • A civilian in a war zone

Major accidents

  • Workplace

  • Automobile

  • Airplane

Being a witness to any of the above

Symptoms of post-traumatic stress disorder usually appear about three months after the event but can show up even years later. Sometimes a life event such as the death of someone you know, another traumatic event, or the birth of a baby can trigger the onset of PTSD well after the original trauma occurred. Often depression, drug or alcohol use problems can show up along with post-traumatic stress disorder.


Who does it affect?

While many people will experience a traumatic event at some point in their lives, only 8% people will experience post-traumatic stress disorder in their lifetime. There are some groups that are at higher risk of post-traumatic stress disorder than others:

  • People in certain occupations—are at higher risk. A study out of the University of British Columbia found that emergency personnel such as doctors, nurses, paramedics and firefighters experience post-traumatic stress at twice the rate of the average population. In Canada, it is estimated that up to 10% of war zone veterans—including war service veterans and peacekeeping forces—will go on to experience post-traumatic stress disorder.

  • Women—are twice as likely as men to be diagnosed with post-traumatic stress disorder. The reasons for this are unclear.

  • Refugees—are at higher risk for post-traumatic stress disorder as a result of the stressful events that forced them to flee their homeland and the difficulties involved in moving to a new country.

  • Aboriginal people—who attended residential schools* have reported experiencing post-traumatic stress disorder as a result of the abuse that took place. A small percentage of residential school survivors have reported this phenomenon now called 'residential school syndrome.'
    * Residential schools were Church-run, government-funded schools for native children, set up during the early 1900s. The schools were supposed to prepare aboriginal children for life in white society. Some children who attended the schools were subjected to physical, sexual and emotional abuse. The last residential school didn’t close until 1996.


Could I have post-traumatic stress disorder?

It’s normal to feel stressed, anxious, shocked and overwhelmed immediately after a traumatic event. It’s also normal to feel different things or not much of anything at all—people respond differently to different situations. Most people who experience trauma won’t develop post-traumatic stress disorder. But if you feel as though you’ve lost control of your life, that the memory of the event is controlling you, or have several of the following symptoms for more than a month, you should talk to your doctor.

  • Recurring thoughts, ‘flashbacks’ or nightmares about the event (Each person’s experience with flashbacks is unique. Some people have “complete” flashbacks like the example in the opening paragraph of this fact sheet while others may re-experience a feeling, smell, sight or sound from the event without losing touch with the present.)

  • Changes in sleep patterns or appetite

  • Anxiety and fear, especially when confronted with events or situations that remind you of the trauma

  • Feeling “on edge,” being easily startled or becoming overly alert

  • Crying for no reason, feeling despair and hopelessness or other symptoms of depression

  • Memory problems including finding it difficult to remember parts of the trauma

  • Feeling scattered and unable to focus on work or daily activities

  • Difficulty making decisions

  • Irritability or agitation

  • Anger or resentment

  • Guilt

  • Emotional numbness or withdrawal

  • Sudden overprotectiveness and fear for the safety of loved ones

  • Avoidance of activities, places or even people that remind you of the event

  • Other physical health problems like dizziness, stomach upset or less ability to fight off sickness or infection


What can I do about it?

There are many different treatments for post-traumatic stress disorder including:

  • Cognitive-behavioural therapy (CBT): A therapist can help teach you better ways to cope with your anxiety and work with you to help you change your harmful thoughts, feelings and behaviours. CBT can be done one on one or in a group.

    • Exposure therapy is often part of CBT therapy. In exposure, you are guided to gradually and carefully re-live parts of the experience to work through the trauma and face your fears and responses head-on.

  • Support groups: Many people with post-traumatic stress disorder find anxiety support groups helpful. They can help you realize that you’re not alone and what you are going through is very understandable.

  • Medications: Certain types of anti-depressants or anti-anxiety medications can be helpful in managing some of the symptoms of post-traumatic stress disorder or helping prevent relapses.

Eventually, with treatment, most people are able to feel comfortable in their own skin again and move on to the point where they can remember the traumatic event without reliving it.


Where do I go from here?

If you think you or someone you care about has post-traumatic stress disorder the best thing to do is talk to your doctor. Together you can decide which of the above treatments, if any, would be best for you. In addition to talking to your family doctor, check out the resources below for more PTSD information.

Other helfpul resources, available in English only, are:

Visit or call 604-525-7566 for information and community resources on anxiety.

BC Partners for Mental Health and Addictions Information
Visit for info sheets and personal stories about (illness). You’ll also find more information, tips and self-tests to help you understand many different mental health problems.

Resources available in many languages:
*For each service on the right, if English is not your first language, say the name of your preferred language in English to be connected to an interpreter. More than 100 languages are available.

If your trauma is a result of crimes like rape or relationship violence, assault or burglary, call 1-800-563-0808 (toll-free in BC and Yukon) 24 hours a day. Learn more at

HealthLink BC
Call 811 or visit to access free, non-emergency health information for anyone in your family, including mental health information. Through 811, you can also speak to a registered nurse about symptoms you’re worried about, or talk with a pharmacist about medication questions.


Crisis lines aren’t only for people in crisis. You can call for information on local services or if you just need someone to talk to. If you are in distress, call 310-6789 (do not add 604, 778 or 250 before the number) 24 hours a day to connect to a BC crisis line, without a wait or busy signal. The crisis lines linked in through 310-6789 have received advanced training in mental health issues and services by members of the BC Partners for Mental Health and Addictions Information.


About the author

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The Canadian Mental Health Association promotes the mental health of all and supports the resilience and recovery of people experiencing a mental illness through public education, community-based research, advocacy, and direct services. Visit


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