The Overlooked Signs of PTSD in Children, Teens, and Adults

When most people picture Post-Traumatic Stress Disorder (PTSD), they imagine dramatic flashbacks, recurring nightmares or someone becoming visibly distressed when confronted with memories of a terrible event. And yes, it can look like that. But trauma does not always announce itself so clearly.

Sometimes it looks like anxiety. Sometimes it looks like anger, withdrawal or poor concentration. It can show up as perfectionism, sensory overwhelm or what others describe simply as “bad behaviour.” And sometimes, it looks like a person who appears completely fine but is quietly spending an enormous amount of energy to stay that way.
Around 12 in every 100 Australians will experience PTSD at some point in their lives. It can develop after directly experiencing or witnessing a traumatic event, learning that something traumatic happened to someone close, or being repeatedly exposed to traumatic situations over time.

Not everyone who experiences trauma develops PTSD, and the way a person responds to difficulty says nothing negative about their character or strength. Many trauma responses are simply the nervous system’s attempt to protect a person after something frightening or overwhelming. The difficulty is that these protective responses can continue long after the actual danger has passed.

How it looks different across the lifespan

A child is unlikely to say, “I am experiencing intrusive memories, and my nervous system still believes I am in danger.”

Instead, they may become clingy, irritable or unusually fearful. They might regress in skills they had previously developed, avoid certain people or places, struggle with sleep, complain of stomach aches or repeatedly act out aspects of an experience through play. What adults often interpret as defiance or deliberate misbehaviour, may be something much deeper.

A teenager may withdraw, shut down, refuse school, become highly reactive, take more risks or appear to have suddenly stopped caring about everything. Avoidance can easily be mistaken for laziness, oppositional behaviour or a lack of motivation, when it is actually their way of steering clear of people, places, conversations or sensations that feel overwhelming.

In adults, PTSD may closely resemble ongoing anxiety, panic, depression, insomnia or anger. A person may constantly scan for danger, startle easily, disconnect emotionally or remain intensely busy so they never have time to stop and think.

Others become extremely capable, controlled and perfectionistic. A calm and composed exterior does not necessarily mean that someone feels safe on the inside.

What about ADHD and Autism?

There can be significant overlap between trauma responses and experiences associated with ADHD or Autism, including concentration difficulties, emotional dysregulation, shutdowns, sleep problems, sensory overwhelm and difficulty with unexpected change.

This does not mean these conditions are caused by trauma, nor does it mean every difficulty an Autistic person or someone with ADHD experiences should be interpreted through a trauma lens.

However, neurodivergent people absolutely can and do experience trauma. When every sign of distress is dismissed as “just the Autism” or “just ADHD,” important experiences can be missed entirely.

The goal is not to replace one label with another. It is to remain curious about the whole person.

Looking beneath the behaviour

Clinically, the patterns associated with PTSD do not always present in the neat way they appear in diagnostic criteria. What often becomes visible instead are the ways a person has adapted to living with them.

Avoidance may look like refusing school. Hypervigilance may look like irritability. Emotional numbing may look like indifference. Intrusive memories may present as sudden distress that the person cannot explain.

A child’s meltdown, a teenager’s shutdown or an adult’s outburst of anger may be communicating far more than is initially apparent.
Understanding this does not excuse harmful behaviour. But it may change how effectively we respond to it. Punishment alone cannot teach a nervous system that it is now safe.

What can actually help?

Effective trauma therapy does not begin by requiring someone to disclose every detail of the most difficult experience of their life.

It begins with understanding the person, building trust, establishing a sense of safety and working at a pace they can tolerate.

Evidence-based treatments include Trauma-focused Cognitive Behavioural Therapy (TF-CBT) and Eye Movement Desensitisation and Reprocessing (EMDR). EMDR is a structured therapy that helps people process distressing memories through bilateral stimulation, such as guided eye movements. Therapy should always be adapted to the person’s age, communication style, needs and readiness.

You do not need to be certain you have PTSD before seeking support. You do not need to arrive with a perfectly organised account of what happened.
This PTSD Awareness Day, it may be worth looking again at the anxiety, anger, avoidance or difficult behaviour that has never quite made sense.

Sometimes, the first step, is simply having a safe conversation with someone willing to look beneath the surface.

Mindworx Psychology provides trauma-informed psychological support for children, teenagers and adults, including Trauma-Focused Cognitive Behavioural Therapy (TF-CBT) and Eye Movement Desensitisation and Reprocessing (EMDR). Contact our team to discuss whether an initial appointment may be helpful for you or someone in your family.

by Adele McFarland, Clinical Psychologist