If you have been through something traumatic or highly stressful, wanting to stay away from reminders makes sense. Your brain has identified the event—or sequence of events—as a threat and is trying to protect you from further danger and distress.
Avoidance tends to work. It puts distance between you and the memory, feeling or situation. Your distress falls and you regain a sense of control.
The problem is that this relief is temporary.
Each time avoidance works, it teaches your brain to keep using it. It prevents the trauma memory from being properly processed and stop your threat system from learning that the event is over, a reminder is not the same as the original danger, and difficult reactions can be experienced without losing control.
What avoidance in PTSD actually is
Avoidance in PTSD means trying to stay away from thoughts, feelings, sensations, people, places or situations connected to what happened.
It can be obvious, such as refusing to drive past the location of a serious incident. It can also be subtle, such as keeping constantly busy, changing the subject when certain topics arise or mentally checking out when you cannot physically leave.
There are two broad types of avoidance.
1. Emotional avoidance
Emotional avoidance involves trying to push away thoughts, memories, emotions or physical sensations connected to the trauma.
From the outside, you might appear calm, detached or switched off. Inside, considerable effort may be going into keeping certain experiences out of awareness.
Emotional avoidance can include:
- Shutting down sadness or grief about a job, deployment, colleague or particular callout
- Staying busy every waking hour so memories never get a clear run at you
- Refusing to think or talk about what happened
- Drinking, using substances, gaming or scrolling to block out thoughts and feelings
- Feeling emotionally flat, cut off or “not really there,” including with your family
- Changing the subject, going quiet or leaving when particular topics arise
- Mentally checking out or dissociating when you cannot physically leave
- Avoiding exercise or other activities that produce sensations such as breathlessness, dizziness or a racing heart
Emotional avoidance is not always about fear. A person may be trying to avoid grief, guilt, shame, anger, disgust, helplessness or the pain of betrayal.
- A veteran might avoid former unit mates because seeing them activates grief or survivor guilt.
- A first responder might refuse to discuss an incident because it brings up guilt about what they believe they should have done.
- Someone affected by organisational betrayal may avoid their former workplace because contact activates anger, humiliation and loss of trust.
2. Behavioural avoidance
Behavioural avoidance means staying away from people, places, activities and situations that remind you of what happened. For example:
- A police officer will not drive past a particular address or intersection.
- A paramedic takes the long way to avoid the hospital where a difficult job ended.
- A veteran stops watching the news because of coverage of conflict.
- A firefighter cannot tolerate backyard fires or the smell of smoke when off duty.
- Someone avoids exercise because physical arousal feels too similar to their trauma response.
- A person refuses medical appointments because the setting activates memories of injury, death or helplessness.
- A first responder declines social events or pulls away from the people they worked alongside.
Some avoidance is difficult to recognise because it looks like a preference. For example:
- “I just don’t like crowds.”
- “I’m not a pub person anymore.”
- “I’d rather work than take leave.”
- “I’ve moved on. There’s no point talking about it.”
Sometimes that is simply a preference. Sometimes it is avoidance with a plausible cover story. A useful question is: “Would I still make this choice if the memories, feelings or physical reactions were not part of it?”
Safety behaviours: staying while still protecting yourself
Avoidance does not always mean staying away completely. Sometimes a person enters a situation but relies on particular precautions to feel safe. These are known as safety behaviours. They might include:
- Always sitting with your back to the wall
- Continually monitoring exits
- Only going somewhere with a trusted person
- Carrying something for protection
- Driving only on familiar roads
- Repeatedly checking the environment
- Keeping yourself distracted so you cannot think
- Using alcohol before a social event
- Leaving as soon as anxiety begins to rise
Some precautions are sensible and proportionate to genuine risk. They become a problem when they are rigid, excessive or prevent you from discovering that you could manage without them.
If nothing bad happens, you may conclude:
- “I was only safe because I checked everything.”
- “I only coped because my partner was there.”
- “I didn’t lose control because I got out quickly.”
The situation may have been safe, but your brain gives the credit to the safety behaviour. Its original prediction about danger never gets properly tested.
Why avoidance feels like it works
Avoidance is difficult to change because, in the short term, it delivers. The sequence usually looks like this:
- Something reminds you of the trauma. It might be a smell, sound, location, conversation, physical sensation or situation that feels similar to the original event.
- Your brain interprets the reminder as a sign of danger—or as a warning that intolerable feelings and memories are about to surface.
- Your body reacts. Your heart rate increases, your breathing becomes faster and shallower, your muscles tighten and your thoughts race. You might feel sweaty, dizzy, nauseated or unable to focus properly.
- You leave, push the memory down, shut off the feeling or use a safety behaviour.
- The distress drops. You feel relief.
That relief is real and immediate. But it comes with a hidden cost. Every time avoidance produces relief, your brain may learn:
- “That reminder was dangerous.”
- “Getting away kept me safe.”
- “I could not have handled what would have happened next.”
This is known as negative reinforcement. It means a behaviour becomes stronger because it removes something unpleasant. The next time a similar reminder appears, your brain is more likely to activate the same response. It may also respond sooner, before you have had time to assess what is actually happening.
Avoidance is therefore a protection strategy that has been repeatedly reinforced. The problem is that the strategy continues to operate after the original danger or threat has passed.
Why a reminder can feel like the event is happening again
Trauma memories are not always recalled like ordinary autobiographical memories. They can be strongly organised around:
- Sensory impressions
- Physical sensations
- Moments of greatest danger
- Things you saw, heard or smelled
- What you believed was about to happen
At the same time, the memory may be less clearly connected to when and where the event occurred, how it ended and how the present differs from the past.
A similar sound, smell, sensation or visual detail can activate the trauma memory before you consciously recognise the connection. Your threat system responds to the match, not to the date on the calendar.
This is why someone can logically know they are safe while their body reacts as though the danger is current.
Avoidance prevents the memory from being updated with important information:
- The event is over.
- This is a reminder, not the event itself.
- The current situation is different.
- You know things now that you could not know then.
- You have options now that were not available then.
What you believe will happen matters
Avoidance is influenced not only by the reminder but also by what you believe will happen if you stay, remember or allow yourself to feel.
You might predict an external danger:
- “It could happen again.”
- “Nowhere is safe.”
- “People cannot be trusted.”
- “If I let my guard down, something bad will happen.”
The feared outcome can also be internal:
- “If I think about it, I’ll lose control.”
- “If I start crying, I’ll never stop.”
- “If I feel the anger, I might hurt someone.”
- “My physical reaction means something is seriously wrong.”
- “If people see me struggling, they’ll judge me.”
- “I won’t cope with what comes up.”
Avoidance prevents these predictions from being tested. If you always leave as soon as distress rises, you never discover whether the feeling would have peaked and fallen, whether you would have retained control or whether you could have managed differently from how you expected.
How avoidance keeps the other PTSD symptoms going
Avoidance prevents your brain from learning that:
- A reminder is not the original event.
- Distress can rise and fall without escape.
- Thoughts and feelings are uncomfortable but not necessarily dangerous.
- Physical arousal does not always indicate current threat.
- You may have more capacity to cope than you predict.
- Some people, places and situations are safe.
- Safety behaviours may not be as necessary as they feel.
It also protects trauma-related beliefs from being tested:
- Avoiding crowds preserves “crowds are unsafe.”
- Refusing to talk preserves “if I talk about it, I’ll fall apart.”
- Emotional numbing preserves “I cannot tolerate grief.”
- Avoiding people preserves “others will judge me.”
- Constant scanning preserves “I am only safe when I remain hypervigilant.”
Avoidance can also remove many of the things that would otherwise support recovery:
- Relationships and social support
- Exercise and routine
- Work and valued roles
- Enjoyable or meaningful activities
- A sense of competence
- Humour and connection
- Opportunities to experience safety
As life becomes narrower, mood can drop. Isolation, irritability, sleep problems, rumination and reliance on alcohol may increase. These changes leave fewer psychological and social resources available for managing trauma symptoms.
Research consistently links persistent avoidance with more severe and enduring PTSD symptoms. The relationship is not entirely one-way—more severe symptoms also create a stronger urge to avoid—but avoidance remains a central process keeping PTSD going.
What helps reduce avoidance?
Effective PTSD treatment does not force you to confront everything at once. It helps you understand what you are avoiding, what you believe will happen and what your brain needs to learn.
This may involve:
- Identifying obvious and subtle forms of avoidance
- Noticing the immediate relief that reinforces them
- Identifying feared outcomes such as danger, judgement or loss of control
- Gradually reducing unnecessary safety behaviours
- Approaching memories, emotions and situations in a planned way
- Processing the trauma memory and updating what it means
- Learning that difficult physical and emotional reactions can be experienced without becoming dangerous
Evidence-based treatments such as Cognitive Processing Therapy, Cognitive Therapy for PTSD, Prolonged Exposure, EMDR and other trauma-focused cognitive behavioural therapies address avoidance in different ways.
The aim is not simply to make you distressed until the distress passes. It is to develop more accurate learning:
- “I can remember without being back there.”
- “I can experience this feeling without losing control.”
- “My body can be activated without something terrible happening.”
- “I have choices now that I did not have then.”
Trauma work should be collaborative, structured and paced. You should understand what you are doing, why you are doing it and what you are trying to learn from it.
The takeaway
Avoidance may have helped you continue functioning. It allowed you to front up to the next shift, attend the next job, go back out on patrol, or keep the household going when there was little time or space to process what had happened.
But a strategy that helps in the short term can become costly when it becomes your main way of managing trauma reminders. If your world has been getting smaller—fewer places, fewer people, fewer activities and fewer feelings—avoidance may no longer be protecting you. It may be keeping the alarm active.
Avoidance can also spread well beyond the original reminder. A reaction that begins with one road, sound or situation can gradually extend to places and experiences that were never directly involved in the trauma.
In the next article, I explain why PTSD triggers spread and how treatment helps the brain distinguish trauma reminders from present threat or danger.
