TRAUMA-INFORMED APPROACHES · 07

Trauma, PTSD and
complex PTSD.

I was told it ‘wasn’t really trauma’ because it was only medical.

Clear definitions of trauma, trauma-related distress, PTSD, complex PTSD, trauma-informed care and trauma-focused treatment, without a self-diagnosis checklist.

Read in 60 seconds

What this is: a guide to the key terms and how they differ.

Why it matters: confused terms lead to dismissal or over-labelling.

The sharpest reframe: distress matters whether or not it meets a diagnostic threshold.

One thing to take away: complex PTSD is about a pattern of symptoms, not a count of bad experiences.

The short version

Trauma words are often used interchangeably, which causes confusion. A traumatic experience is something that can have lasting harmful effects, though people respond to the same event very differently. Trauma-related distress is any difficulty linked to such experiences, with or without a diagnosis. PTSD and complex PTSD are specific clinical patterns that need proper assessment. Trauma-informed care is about how services work; trauma-focused treatment is therapy aimed at trauma symptoms. Distress matters whether or not it meets a diagnostic threshold, and nobody should need a diagnosis to be treated with respect.

You might recognise this

Illustrative statements

Drawn together from common experiences. They are not quotes from individual people.

“I don’t think I have PTSD. I still flinch every time I see a cannula.”
“My complex PTSD diagnosis made sense of a lot. It isn’t the whole of me.”
“I looked up my symptoms online and scared myself.”
“I was told it ‘wasn’t really trauma’ because it was only medical.”

The terms, side by side

Established concepts

Traumatic experience

An event or circumstances experienced as harmful or threatening, which can have lasting effects. Not everyone exposed to the same event is affected in the same way.

Trauma-related distress

Difficulties associated with traumatic experiences, whether or not a diagnosis applies.

PTSD

A defined clinical pattern. In ICD-11, it involves re-experiencing the event in the present, avoiding reminders, and a persistent sense of current threat, lasting at least several weeks and affecting daily life.

Complex PTSD

In ICD-11, all the requirements for PTSD plus persistent difficulties with emotional regulation, a diminished or worthless view of oneself, and sustaining relationships.

Trauma-informed care

How services and practitioners work with everyone, guided by principles such as safety, transparency and choice.

Trauma-focused treatment

Therapies aimed specifically at trauma-related symptoms and memories, such as trauma-focused CBT or EMDR.

What complex PTSD is, and isn’t

Established concept

ICD-11 describes complex PTSD as most often following prolonged or repeated trauma from which escape is difficult or impossible, such as long-term domestic violence or repeated childhood abuse. But the diagnosis rests on the pattern of symptoms, not on counting adverse experiences. Prolonged trauma is a risk factor, not a requirement, and PTSD can follow repeated events as well as single ones.

Our framework For disabled people, repeated medical procedures, institutional care, or long-term abuse by carers can be the kind of prolonged experience from which escape is hard. That doesn’t mean every disabled person who had many procedures has complex PTSD. It means the possibility is worth assessing properly, rather than assuming or dismissing it.

Distress without a diagnosis

Our framework
  • Below the threshold still matters. Someone may flinch at hospital smells, avoid certain rooms, or sleep badly before appointments without meeting criteria for PTSD. That is still worth help.
  • “Only medical” is still trauma. Medical and procedural experiences can be traumatic, even when treatment was necessary and well meant. See Medical and Procedural Trauma.
  • A diagnosis can help. It can open access to recommended treatment and make sense of long-standing difficulties.
  • A diagnosis isn’t an identity. It describes a pattern of difficulty, not a whole person.

If you’re wondering about yourself

For readers

This page isn’t a checklist, and reading it can’t tell you whether you have PTSD or complex PTSD. If the descriptions feel familiar and are affecting your life, a proper assessment with a qualified professional is the way to find out, and to find out what might help. If you’re in distress now, contact your GP or local emergency services.

What needs attention here?

Someone is told it ‘wasn’t really trauma’ because it was medical

Possible focus: whether it had lasting effects

Watch for: dismissing medical trauma

Distress doesn’t meet PTSD criteria

Possible focus: help for the distress anyway

Watch for: withholding support without a diagnosis

A person has had many procedures

Possible focus: proper assessment of what they experience

Watch for: assuming or ruling out complex PTSD

A diagnosis is given

Possible focus: what it opens, and that it isn’t the whole person

Watch for: defining the person by it

Possible starting points, agreed with the person, not rules.

How you’d know it helped

  • The person understands which terms apply to them, and which don’t.
  • Distress is taken seriously, with or without a diagnosis.
  • Assessment, where needed, is offered properly.

Words you can use

For clients
“It doesn’t have to be PTSD to matter.”
“Medical trauma is still trauma.”
“I’d like a proper assessment, not a guess.”

Questions worth carrying, as a therapist

Therapist Reflection
  • Am I using ‘trauma’, ‘PTSD’ and ‘complex PTSD’ precisely?
  • Am I dismissing medical experiences as ‘not really trauma’?
  • Would assessment help this person, and have I offered it?

Evidence & sources

Sources checked in October 2026, using targeted searches rather than a systematic review. “We have not located” means our searches did not find it.

Established concept

PTSD (6B40) and complex PTSD (6B41): World Health Organization, International Classification of Diseases, 11th Revision (ICD-11).

Established concept

Trauma as event, experience and effect: SAMHSA (2014), SAMHSA’s Concept of Trauma and Guidance for a Trauma-Informed Approach.

Our framework

The application to disabled people, medical trauma and distress below diagnostic thresholds is this site’s synthesis.

Not yet known

We have not located research on rates of complex PTSD among disabled people who have experienced repeated medical procedures.

Last reviewed: October 2026.

How to cite this page: Donaghey, C. (2026). Trauma, PTSD and Complex PTSD. Disability in Psychotherapy. Available at: https://disabilityinpsychotherapy.online/what-is-psychotherapy/trauma-informed-approaches/trauma-ptsd-and-complex-ptsd/ (Accessed: [date]).