A client's breathing changes. Their voice drops or breaks. What was steady disturbance a minute ago is suddenly a wave the client seems to be inside of rather than observing. New therapists usually have the same first thought: I did something wrong. I need to stop this. That instinct is understandable and it's also the thing most likely to derail a session that was actually going fine.
What abreaction actually is
EMDRIA defines abreaction as what happens when a client accesses overwhelming sensations and emotions during reprocessing. It's a normal, potential part of processing any given target, not a mandatory step and not something to avoid engineering around. The treatment itself isn't what's causing the distress. The distress is a natural response to neural networks that are finally active enough to be felt.
That distinction matters more than it sounds like it should. If you're operating from the belief that the intensity means something has gone wrong, your instinct will be to intervene in ways that interrupt processing, changing the target, softening the language, reaching for reassurance before the client has finished moving through what's coming up. If you're operating from the understanding that this is what activated processing can look like, your job is different: stay present, stay structured, and let the protocol do what it's built to do.
Protocol fidelity means the plan was already in place
The therapists who handle abreaction well aren't doing anything dramatic in the moment. They did the work earlier. EMDRIA's own guidance on this is specific: build a strong therapeutic relationship in advance of Phases 3 through 7, and develop a plan with the client, agreed to before reprocessing starts, for what will happen if abreaction occurs. By the time a client is mid-wave, that conversation should already have happened. Fidelity to the protocol under pressure isn't improvisation. It's following through on preparation that was done when things were calm.
A few things that make the difference between an abreaction that resolves within the structure and one that derails the session:
Graduated targets. Titrating the size and intensity of what's being approached, rather than moving straight at the most activating material, gives the client's system room to build capacity as it goes.
Monitoring SUD and ego state shifts in real time, not just at the start and end of a set. A shift in ego state mid-set changes what you're actually working with.
Staying attuned rather than reactive. The therapist's own regulation is part of what keeps the session inside the client's window of tolerance. A dysregulated therapist can't hold that structure for someone else.
Building in extra time for closure. An abreaction that surfaces late in a session changes what closure needs to look like, and that only works if you've left room for it.
Following up between sessions, especially after a session where something significant surfaced. Fidelity doesn't end when the session does.
None of this is about suppressing the abreaction or rushing past it. It's about the structure being strong enough to hold it.
The complication worth naming: abreaction isn't always just abreaction
With complex trauma cases specifically, what looks like an abreaction can sometimes be a client moving into dissociation instead, or a protective part of the system stepping forward. These aren't the same clinical picture, and they don't call for the same response. Additional effort during History-Taking and Preparation, specifically building affect tolerance and attunement before reprocessing begins, is part of what makes it possible to tell the difference in the moment rather than after.
This is one of the places therapists most often bring cases to consultation, not because the interweave was wrong, but because something about the pacing or the plan didn't hold the way it was supposed to, and it's hard to see why from inside the session.
Where this fits in consultation
If you're newer to EMDR, or newer to working with clients whose history makes abreaction more likely, this is exactly the kind of case worth bringing to consultation before it happens, not just after. Reviewing your preparation plan, your agreed-upon signal system with the client, and your own regulation strategy in advance changes what's available to you in the moment far more than anything you could improvise once a client is already in it.
If you want to talk through how you're structuring preparation for a client where this feels like a live risk, let's talk about consultation.
Sources: EMDR International Association (EMDRIA), Glossary of EMDR Terms; "Guidelines for Virtual EMDR Therapy: A Report of the Virtual Training and Therapy Task Group," emdria.org.
