The word "trauma" usually evokes images of extreme events: a serious accident, an assault, a catastrophe. And yes, those experiences can be traumatic. But reducing trauma to those events leaves out a much more frequent reality — and often a harder one to recognise.
Simple trauma: the single event
Simple trauma (or Type I) refers to a single experience, bounded in time, that overwhelms the person's processing capacity: a traffic accident, an assault, the sudden death of someone close, a natural disaster.
These are events with a clear before and after. The person can identify exactly what happened and when. The therapeutic work, often with tools like EMDR, focuses on processing that specific experience so it stops generating disproportionate emotional and bodily responses in the present.
Complex trauma: what accumulates
Complex trauma (or Type II) is different. It doesn't come from a single event but from repeated experiences, sustained over time, generally in the context of relationships where the person was in a position of vulnerability.
The most common examples include: growing up in an emotionally neglectful environment where your emotional needs weren't consistently met; living with an unpredictable parent (whether through addiction, mental illness or simply emotional immaturity); suffering chronic emotional invalidation ("it's not that bad", "stop crying", "others have it worse"); or experiencing years of minority stress because of your sexual or gender identity.
Complex trauma doesn't always feel like trauma. It often feels like "this is just who I am" — because it gets confused with identity itself.
Why is it harder to recognise?
Because there's no dramatic event to point to. The person can't say "this happened to me" with the same clarity. What they have are patterns: difficulty trusting, a tendency to please, hypersensitivity to rejection, extreme self-demand, a chronic feeling of not being enough.
These patterns feel like personality traits, not consequences of something that happened. That's why many people with complex trauma never identify as "traumatised" — even though their lives are deeply conditioned by those early experiences.
The impact on the nervous system
Both simple and complex trauma leave a mark on the nervous system. But complex trauma does so more insidiously: it configures the nervous system to function in a state of chronic alert or disconnection that the person perceives as normal because they've never known anything else.
How is it worked on?
Working with complex trauma requires a different approach from simple trauma. It's not enough to process a memory — relational patterns need rebuilding, beliefs about yourself formed very early need revisiting, and you need to learn to regulate a nervous system that's spent years in survival mode.
In my integrative approach, this means combining IFS (to work with the protective parts that formed in response), EMDR (to process key memories), somatic work (to reconnect with the body) and a relational lens (because trauma that happened in relationship heals, in part, in relationship).
Do you identify?
If reading this you've felt that something fits — even if you can't point to a specific event — it's worth exploring. You don't need a dramatic memory for trauma work to be deeply transformative.