Signs of Retraumatisation in People

What Is Retraumatisation?

Retraumatisation is when a person is triggered in a way that makes them re-experience the emotional, psychological, or physical impact of a past trauma, even though the original traumatic event is no longer happening. For autistic people and people with a learning disability, retraumatisation may occur through loss of routine or predictability, sensory overload, communication being ignored or overridden or ‘doing to’ rather than ‘working with’ the person.

When people feel the same fear, loss of control, or danger they felt during a past traumatic event, even though they are not in danger now, trauma-informed practice helps people’s path to recovery in every aspect of their living. Trauma-informed care aligns pretty closely with Positive Behaviour Support (PBS) and strength-based, person-centred care and directly prevents retraumatisation. A trauma-informed approach aims to avoid causing further harm by prioritising:

Emotional, physical and environmental safety
Choice and control
Collaboration
Trust and transparency
Empowerment
Respect for communication differences

How Retraumatisation Differs From PTSD Symptoms

Although retraumatisation and PTSD are closely linked, they are not the same thing. Retraumatisation is a process or event that happens when something in the present triggers a person’s past trauma. At the same time, PTSD is a mental health condition which develops after experiencing or witnessing trauma. Psychological therapies can help manage PTSD symptoms, highlighting a significant negative correlation between early intervention and severity of retraumatisation episodes.

When does retraumatisation happen, and what triggers it?

Retraumatisation occurs in the moment and can be sudden and situational. It can be triggered by current experiences such as loss of choice or consent, being restrained, rushed, or spoken to harshly, being ignored or not believed. The reasons are usually environmental or relational. Personal triggers can also emerge from personal relationshipsthat replicate past dynamics of powerlessness.

When does PTSD happen, and what triggers it?

PTSD is a persistent and long-term condition, and may continue even without an immediate trigger. It can fluctuate, but is generally ongoing. PTSD symptoms can be triggered by memories, thoughts, or reminders of trauma, external cues (sounds, smells, and places), and internal states as well, such as stress or fatigue.

The relationship between the two:

Retraumatisation can worsen existing PTSD symptoms.
Repeated retraumatisation can contribute to the development of PTSD
Trauma-informed care aims to reduce retraumatisation, not diagnose PTSD

PTSD is about what someone carries with them. Retraumatisation is about what we may unintentionally do to them now.

Why Retraumatisation Often Happens Unintentionally

Retraumatisation rarely happens because someone intends to cause harm. It most often occurs when systems, environments, or interactions overlook the impact of trauma on a person’s nervous system, communication, and sense of safety. Many people do not disclose trauma, or may not have the language, trust, or capacity to explain it. It is why:

Trauma histories are not always documented.
Some people communicate distress through behaviour, not words.
Autistic people or people with learning disabilities may express trauma through changes in routine, shutdown, or escalation.

Retraumatisation happens unintentionally when:

‘‘Standard procedures” override individual needs. Examples include rigid schedules, repeated assessments, asking people to retell distressing experiences, enforcing rules without explanation, or prioritising tasks over emotional readiness.
Lack of trauma-informed training.
Health and social care settings inherently involve unequal power. People may experience decisions being made about them, not with them, consent being rushed or assumed, and feeling unable to say ‘no’.
Sensory and environmental overload. Triggers may include bright lights, noise, touch without warning, crowded or unfamiliar spaces.
Time pressure and system stress (staff working under pressure)
Good intentions ≠ safe impact with statements like: ”I’m only trying to help”; ”This is for your own good”; ”We don’t have time for this right now”.

Common Causes of Retraumatisation

Witnessing retraumatisation leaves psychological and physical marks, and is most often caused by triggers that echo past trauma, restrictive or controlling practices, and sensory or environmental stressors. Recognising these causes in time allows caregivers and professionals to adapt environments, routines, and interactions to minimise triggers and promote safety, choice, and emotional regulation.

Exposure to Reminders or Triggers

Exposure to reminders or triggers involves encountering people, situations, objects, places, sounds, smells, or other cues that resemble or recall elements of a past traumatic experience. These reminders can activate distressing thoughts, feelings, or sensations linked to the original trauma, sometimes making a person feel as if the trauma is happening again, even if it isn’t.

Trauma survivors often experience these trauma triggers as sudden emotional or physical responses because their nervous system associates the present cue with past harm. Even seemingly benign things can act as reminders if they resemble sensory or emotional elements of the trauma, bringing chronic stress. Examples of reminders:

A particular sound
A smell associated with the trauma environment
A place similar to where the original trauma occurred
Interactions or communication styles that replicate past dynamics of powerlessness
Objects, colours or images connected to the traumatic event

Restrictive Practices in Services and Institutional Settings

Practices such as physical restraint, seclusion, forced medication, or rapid tranquilisation are used in some health settings to prevent harm. However, many people who have experienced trauma (e.g., abuse or violence) report feeling retraumatised by the very methods intended to keep them safe. These interventions can echo past experiences of loss of control, threat to personal safety, or violation of bodily autonomy, triggering stress responses linked to earlier trauma.

Admission to a clinical or institutional setting, where people may feel stripped of choice and control, itself has been recognised as inherently restrictive and potentially traumatic. Even when used with legal justification, the experience of having decisions made for someone else, lack of agency and rigid routines can mirror past experiences of powerlessness, increasing distress.

Read more about The Journey Towards Least-Restrictive Practices, and how our specialists adopt it.

Sensory, Environmental and Situational Triggers

Sensory triggers are cues detected through the senses – sight, sound, smell, taste, or touch – that resemble aspects of a traumatic experience. Environmental or situational triggers are broader contexts or settings that feel unsafe or resemble elements of past trauma (for example, crowded spaces, confinement, or specific routines).

Common sensory reminders that can trigger trauma memories:

Visual reminders (images, objects, people)
Sounds (footsteps, doors, music)
Smells (smoke, aftershave)
Touch
Physical sensations (racing heart, nausea)

The environment itself, such as clinical or institutional spaces, crowded or chaotic settings, lack of privacy, or confinement, can act as a trigger if it resembles elements of past trauma or feels unsafe. While the situational triggers are contexts or circumstances that resemble the dynamics of past trauma, such as:

Feeling trapped, controlled, or powerless
Being in a situation where choice or autonomy is restricted
Being asked to recount difficult experiences
Interactions that echo past abuse or authority figures

Key Signs of Retraumatisation

Retraumatisation is not a behaviour problem. It is a safety response. Recognising the signs early allows care workers to pause or slow down, reduce demands, restore choice and control, adjust the environment, and rebuild emotional safety. The key signs of retraumatisation include:

Emotional signs
Cognitive signs
Behavioural signs
Physical signs

What’s important to know is that not all signs will be present at once. Signs may appear suddenly and seem disproportionate to the situation. Retraumatisation can occur without visible distress at first, and the person may not consciously link their reaction to past trauma.

Emotional Signs

In autistic people, emotional distress may present as withdrawal, distress behaviours, or reduced communication rather than verbal expression. The emotional signs reflect the person’s internal emotional state being overwhelmed or dysregulated. These signs include:

Intense fear, panic or intense anxiety
Feeling unsafe, threatened, or on edge
Overwhelming sadness
Shame, guilt or self-blame
Sudden anger or irritability
Feelings of helplessness or loss of control
Emotional numbness or shutdown

Cognitive Signs

Cognitive signs are often mistaken for “non-engagement” or “lack of insight”. These signs affect thinking, perception, and processing:

Flashbacks or intrusive thoughts and memories
Flashbacks
Confusion or disorientation
Negative self-talk
Memory lapses and confusion
Difficulty concentrating or making decisions
Feeling detached from reality (derealisation)
Feeling detached from self (depersonalisation)
Rigid or black-and-white thinking
Difficulty understanding or following instructions

Behavioural Signs

In PBS, these behaviours are understood as a form of communication of distress, not defiance. These are observable actions that are often mislabelled as “challenging behaviour”:

Sudden escalation or agitation
Avoidance of places, people, or conversations
Withdrawal, shutdown, outbursts or avoidance
Refusal or resistance to care, tasks, or interaction
Hypervigilance
Self-harming behaviours
Attempts to escape or leave the situation
Self-soothing or repetitive behaviours (stimming, pacing)
Regressive behaviours (e.g. child-like responses)
Increased need for control or predictability

Physical Signs

Physical signs may appear even when a person cannot explain what they are feeling. These reflect nervous system activation (fight, flight, freeze):

Rapid heartbeat or palpitations
Shallow or rapid breathing
Sweating, shaking, or trembling
Nausea, stomach pain, or dizziness
Insomnia, changes in sleep or appetite following the incident
Headaches or migraines
Muscle tension or freezing
Feeling faint or light-headed

Dissociation as a Sign of Retraumatisation

Dissociation is a psychological response where a person feels disconnected from themselves, their thoughts, feelings, memories, or surroundings. It is a protective mechanism that can help someone cope during overwhelming stress or trauma by “shutting off” parts of their experience. Dissociation can range from mild (spacing out during a stressful conversation) to severe (losing awareness of one’s identity or surroundings).

Typical forms of dissociation include:

Depersonalisation: Feeling detached from your own body or thoughts, as if watching yourself from the outside.
Derealisation: Feeling the world around you is unreal or dreamlike.
Amnesia: Inability to recall important personal information or trauma-related events.
Identity confusion or fragmentation: Feeling as though multiple “selves” exist, or being unsure who you are.

When someone is retraumatised:

The nervous system can perceive the situation as dangerous, even if it’s not physically threatening.
The brain activates survival responses such as fight, flight, freeze, or dissociation.
Dissociation serves as a protective coping mechanism to reduce emotional or physical distress.

Essentially, the person is mentally “escaping” the triggering situation to protect themselves from reliving the trauma fully.

Protective vs Harmful Dissociation

Dissociation is a psychological response where a person feels disconnected from themselves, their thoughts, feelings, or surroundings, often occurring during or after traumatic experiences. In the context of retraumatisation, dissociation can serve as a protective mechanism, helping the person cope with overwhelming stress or emotional pain. This type of dissociation is typically temporary, situation-specific, and reversible, allowing the person to “mentally escape” the trauma without losing touch with reality. It can manifest as spacing out, depersonalisation, or derealisation, and while it may look concerning, it often helps the person safely survive distressing experiences.

However, dissociation can also become harmful when it is persistent, chronic, or disruptive to daily life. Harmful dissociation may interfere with work, relationships, or basic self-care, and can involve memory gaps, identity confusion, or frequent depersonalisation episodes. Unlike protective dissociation, it often feels uncontrollable and signals unresolved trauma or psychological distress, requiring trauma-informed support or professional intervention. Recognising the difference between protective and harmful dissociation is key: one is an adaptive coping response, while the other indicates that the person needs guidance and strategies to process their trauma safely. This is key for trauma treatment and guiding effective interventions.

Who is More Vulnerable to Retraumatisation?

Vulnerability to retraumatisation is highest in people with prior trauma, mental health challenges, restrictive or triggering environments, ongoing stress, or heightened sensitivity due to developmental or neurodivergent differences, including:

Survivors of abuse and violence
Children, adolescents, and neurodivergent people
Adults with complex trauma or PTSD
People who have experienced childhood neglect or repeated trauma
People with depression, dissociative disorders, and other anxiety disorders
People in hospitals, care facilities, or institutional environments
People facing social or environmental stressors

Preventing Retraumatisation

Preventing retraumatisation is about creating environments and interactions that are safe, predictable, and empowering, minimising triggers, avoiding restrictive practices, supporting emotional regulation, and providing trauma-informed professional care, sensory accommodations, and delivering trauma–focused therapy. It’s a proactive approach that respects the person’s past experiences while promoting recovery and well-being.

Trauma-informed Approaches

A trauma-informed approach recognises that past trauma can profoundly affect a person’s emotions, behaviour, and reactions. By adopting this approach, caregivers and professionals can reduce triggers and prevent retraumatisation through:

Safety and trust: Communicating clearly and predictably, explaining procedures, and being consistent in behaviour help the person feel secure.
Choice and control: Giving people options over their care or environment empowers them and reduces feelings of helplessness that can echo past trauma.
Collaboration and empowerment: Working with the person, valuing their input, and focusing on their strengths helps them regain a sense of agency.
Staff awareness: Training staff to recognise trauma responses, like dissociation or hyperarousal, allows timely interventions to prevent escalation.

In essence, trauma-informed care shifts the focus from “managing behaviour” to understanding and supporting the person, which reduces the likelihood of retraumatisation.

Read more about what our Restrictive Practices Lead, George, has to say on implementing the Trauma Recovery Model in supporting people.

Safe Environments and Sensory Accommodations

A safe environment is more than the absence of physical danger. It also includes emotional and psychological safety. People who have experienced trauma often remain hypervigilant, constantly scanning for threats, even in objectively safe situations. A secure environment helps to reduce this heightened stress response, preventing triggers that could lead to retraumatisation. This includes both physical safety and emotional safety:

Predictable routines: Knowing what to expect reduces anxiety and prevents unexpected triggers.
Clear communication: Informing people about changes, procedures, or upcoming activities fosters trust.
Respect for personal boundaries: Avoiding unnecessary physical contact, intrusive procedures, or coercion ensures the environment does not replicate aspects of past trauma.
Supportive presence: Staff or caregivers who are calm, responsive, and non-judgmental provide reassurance that the individual is safe.

FAQ

Are Retraumatisation and PTSD the Same Thing?

No, retraumatisation and PTSD are not the same thing, though they are closely related. PTSD (Post-Traumatic Stress Disorder) is a formal mental health condition that develops after exposure to a traumatic event, characterised by symptoms such as flashbacks, intrusive memories, hyperarousal, avoidance, and negative changes in mood or cognition. Retraumatisation, on the other hand, refers to the process of being triggered by a new event or situation that mirrors or reminds someone of a past trauma, which can provoke distressing emotional, physical, or psychological reactions.

How Do You Know if Someone is Retraumatised?

You can often recognise if someone is retraumatised by observing a combination of emotional, cognitive, behavioural, and physical signs that indicate they are experiencing distress linked to past trauma. Emotionally, they may appear anxious, fearful, or emotionally numb; cognitively, they might be confused, have memory gaps, or seem “spaced out”; behaviourally, they may withdraw, become irritable, or engage in repetitive self-soothing actions; and physically, they may show signs of hyperarousal such as rapid heartbeat, shallow breathing, or shaking, or signs of shutdown such as frozen posture or exhaustion.

What Therapies Help Prevent Retraumatisation?

Several evidence-based therapies can help prevent retraumatisation by supporting people to process past trauma safely, develop coping strategies, and regulate emotional and physiological responses. Trauma-focused cognitive-behavioural therapy (TF-CBT) helps people reframe trauma-related thoughts and reduce avoidance. At the same time, Eye Movement Desensitisation and Reprocessing (EMDR) helps process traumatic memories to lessen their emotional impact. Somatic therapies and body-based approaches teach people to recognise and regulate physical responses to stress, reducing the likelihood of dissociation or overwhelm. Additionally, mindfulness, grounding techniques, and psychoeducation equip people with skills to manage triggers and maintain a sense of safety, making retraumatisation less likely in daily life and care settings.

– Developing not just a care plan, but a life plan, written by the person living it. – Leaf Complex Care

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