EMDR therapy was built for memories that will not turn into words. What a session involves, who needs extra care first, and what the evidence honestly shows.
Some things will not turn into sentences. You can describe the year it happened, maybe the room, and then the words run out or go flat, and what is left is a feeling in your chest and a body that reacts before you have decided anything.
People in that position often assume therapy is closed to them, because therapy is talking and this is the thing they cannot talk about. That assumption is worth questioning. EMDR therapy, which stands for eye movement desensitization and reprocessing, was built around exactly this problem.
EMDR is a structured trauma therapy delivered in eight phases, in which you hold a distressing memory in mind while doing something that divides your attention, most often following your therapist's hand or a light with your eyes, and sometimes sounds or gentle taps. Over repeated short sets, the memory typically becomes less charged.
The part that matters for the question in the title comes from the World Health Organization, which notes that unlike trauma focused CBT, EMDR does not involve detailed descriptions of the event, direct challenging of beliefs, extended exposure or homework. The EMDR International Association is blunter: one of the unusual features of EMDR is that the person seeking treatment does not have to discuss any of their disturbing memories in detail, and offers as an example a client identifying a memory only as broadly as something my brother did to me.
That is not the same as wordless. You still identify a target, usually an image, along with a belief about yourself, an emotion and where you feel it in your body. It asks for far less narration than exposure based therapies, not none.
Eight phases, and most of them are not the eye movements. EMDRIA describes the sequence like this.
Sessions typically run 60 to 90 minutes, and you stay fully conscious throughout.
Guidelines converge on a range rather than a number. NICE, the clinical guideline body for England, specifies EMDR provided over 8 to 12 sessions, and more if clinically indicated, for example where someone has experienced multiple traumas. The VA and Department of Defense guideline says initial treatment effects are typically noticeable after 4 to 8 sessions delivered over 8 to 12 weeks. The VA's National Center for PTSD describes the usual course as weekly sessions of up to 90 minutes over roughly three months.
A single event is a different job from twenty years of it, and an honest therapist will say so at the start rather than at session ten.
You might, and the protocol assumes something like it.
A 2024 systematic review in BMC Psychology looked at qualitative studies of adults going through trauma focused therapy and found emotional distress reported consistently across all of them, with participants describing that distress as an expected and necessary part of recovery. Some described a period of symptoms worsening early on. The same review found the difficulty is generally time limited: participants progressively found the trauma work more manageable, and most judged the short term difficulty to be outweighed by the benefit.
EMDR is built with that in mind. The EMDR Institute notes that if a client becomes distressed or has difficulty progressing, the therapist follows established procedures to help them get back on track. The closure phase exists so that no session ends with you still in the middle of it. NICE requires that EMDR include teaching of self calming techniques and techniques for managing flashbacks, for use within and between sessions.
So the useful reframe is not whether you will feel something, but whether the room is set up for it. That is what preparation is for.
This is where a lot of writing on EMDR overreaches, so here is the careful version.
The major guidelines do not publish a list of people who should not have EMDR. The 2023 VA and Department of Defense guideline in fact pushes the other way: it suggests that the presence of a co-occurring substance use disorder or other disorders should not preclude the recommended trauma focused therapies. So if you have been told that another diagnosis rules you out, that is not what the guideline says.
What is documented is a caution rather than an exclusion. Screening for a dissociative disorder before reprocessing is a recognised safety step, and dissociation guidelines report that using standard EMDR with someone who has an unrecognised dissociative disorder carries a risk of significant harm. EMDRIA stresses the point that gets lost in shorter explanations: EMDR therapy is a full psychotherapy and not just the reprocessing phases. Before reprocessing, a therapist should be assessing whether you can move out of disturbance and back into calm, both in session and between sessions. People with dissociation or complex, repeated trauma often need substantially longer preparation than someone with a single incident, and moving too early tends to produce dropout rather than progress.
There is also a geographic quirk in the guidelines. NICE recommends EMDR for adults presenting more than three months after a non combat related trauma, and limits its EMDR recommendations to non combat trauma on the basis of the evidence it reviewed. The VA and Department of Defense guideline, which serves exactly the population NICE carves out, strongly recommends it.
That EMDR works about as well as the other leading trauma therapies, and clearly better than no treatment, with real caveats about study quality.
The VA and Department of Defense guideline gives its strongest rating to three individual, manualised trauma focused therapies for PTSD, Cognitive Processing Therapy, EMDR and Prolonged Exposure, with no ranking among them. The International Society for Traumatic Stress Studies gives EMDR a strong recommendation. WHO's current guidance recommends it with a conditional strength of recommendation and moderate quality evidence.
Head to head, four independent analyses, including a Cochrane review and a 2024 individual participant data meta-analysis, found no statistically significant difference between EMDR and other trauma focused therapies. A 2025 review of 29 trials found the same, and noted most were small, with only one rated at low risk of bias.
And one thing worth knowing before you read anything triumphant about eye movements: the VA's own National Center for PTSD states that there is controversy about the mechanism of action in EMDR, or whether bilateral stimulation is needed. That does not make the therapy less useful. It means anyone telling you exactly how it works is ahead of the evidence.
You do not need to arrive with a story ready. Phase one is a conversation about where you are now, and a good therapist will spend real time on preparation before asking you to process anything.
Read more on our EMDR page and our trauma and PTSD page, or send us a note through our contact form. We work with clients across Arizona, in person and by telehealth for clients located in the state.
If the calm on the outside is costing you a lot on the inside, our care team can help you find a therapist who fits, at your pace.
Reach OutEMDR runs in eight phases: history and planning, preparation, assessment of a target memory, desensitization using short sets of bilateral stimulation, installation of a more accurate belief, a body scan, closure to return you to a settled state, and reevaluation at the next session. Most of the work is not the eye movements. Sessions usually run 60 to 90 minutes.
The major guidelines do not publish a list of exclusions, and the VA and Department of Defense guideline says co-occurring conditions should not rule out trauma focused therapy. The documented caution is unrecognised dissociation, which is why screening and a longer preparation phase come first for some people.
Possibly, and the protocol expects strong emotion. A 2024 systematic review of qualitative studies found emotional distress reported consistently across trauma focused therapy, described by participants as expected and necessary, and generally becoming more manageable over time. Every EMDR reprocessing session ends with a closure phase intended to return you to calm.
Not in detail. WHO notes that EMDR does not involve detailed descriptions of the event or extended exposure, and EMDRIA states that a client does not have to discuss disturbing memories in detail. You do identify a target image, a belief, an emotion and a body sensation, so it is less narration rather than none.
NICE specifies 8 to 12 sessions, and more if clinically indicated such as after multiple traumas. The VA and Department of Defense guideline says effects are typically noticeable after 4 to 8 sessions over 8 to 12 weeks. Complex or repeated trauma usually takes longer.
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Sources:
World Health Organization. Guidelines for the Management of Conditions Specifically Related to Stress. 2013 (EMDR does not involve detailed descriptions of the event, direct challenging of beliefs, extended exposure or homework; EMDR should be offered only where practitioners are trained and supervised).
World Health Organization. mhGAP Evidence Centre, Posttraumatic stress disorder: psychological interventions, adults, 2023 update (EMDR recommended; conditional strength of recommendation, moderate quality evidence).
EMDR International Association. The Eight Phases of EMDR Therapy; Experiencing EMDR Therapy; EMDR Therapy and PTSD; How to Set a Firm Foundation for EMDR Therapy Reprocessing (phase descriptions; 60 to 90 minute sessions; clients do not have to discuss memories in detail; EMDR is a full psychotherapy, not only the reprocessing phases; longer preparation for dissociation and complex trauma).
Leeds AM, Madere JA, Coy DM. Beyond the DES-II: Screening for Dissociative Disorders in EMDR Therapy. Journal of EMDR Practice and Research. 2022;16(1):25 to 38 (International Society for the Study of Trauma and Dissociation guidelines report risk of significant harm where a dissociative disorder is unrecognised).
US Department of Veterans Affairs and Department of Defense. Clinical Practice Guideline for the Management of Posttraumatic Stress Disorder and Acute Stress Disorder. 2023 (Recommendation 8, strong for Cognitive Processing Therapy, EMDR and Prolonged Exposure with no ranking; Recommendation 34, comorbidity should not preclude treatment; effects typically noticeable after 4 to 8 sessions over 8 to 12 weeks).
US Department of Veterans Affairs, National Center for PTSD. Eye Movement Desensitization and Reprocessing for PTSD (weekly sessions of up to 90 minutes over about three months; target image, belief, emotion and body sensation; controversy about the mechanism of action and whether bilateral stimulation is needed).
National Institute for Health and Care Excellence. Post-traumatic stress disorder, NG116 (offer EMDR to adults presenting more than 3 months after a non combat related trauma; 8 to 12 sessions, more if clinically indicated; self calming and flashback management techniques required; EMDR recommendations limited to non combat trauma).
International Society for Traumatic Stress Studies. Posttraumatic Stress Disorder Prevention and Treatment Guidelines. 2018 (strong recommendation for EMDR in adults).
Bisson JI, Roberts NP, Andrew M, Cooper R, Lewis C. Psychological therapies for chronic post-traumatic stress disorder (PTSD) in adults. Cochrane Database of Systematic Reviews. 2013 (70 studies, 4,761 participants; no statistically significant difference between individual trauma focused CBT, EMDR and stress management immediately post treatment; evidence rated very low quality).
Wright SL, Sijbrandij M, et al. EMDR versus other psychological therapies for PTSD: a systematic review and individual participant data meta-analysis. Psychological Medicine. 2024 (8 trials, 346 patients; no significant difference in symptom severity, response, remission or dropout).
Simpson E, Carroll C, Sutton A, et al. Clinical and cost-effectiveness of EMDR for treatment and prevention of PTSD in adults. British Journal of Psychology. 2025;116(4):1128 to 1149 (29 RCTs; EMDR clearly better than waitlist or usual care; no significant difference from trauma focused CBT; only one trial at low risk of bias).
Gjerstad SF, Nordin L, Poulsen S, Spadaro EFA, Palic S. How is trauma-focused therapy experienced by adults with PTSD? A systematic review of qualitative studies. BMC Psychology. 2024;12(1):135 (emotional distress reported consistently; described as expected and necessary; becoming more manageable over time).
Hamblen JL, et al. A guide to guidelines for the treatment of posttraumatic stress disorder in adults: an update. Psychotherapy. 2019;56(3):359 to 373 (differences between guideline bodies in how strongly EMDR is recommended, and why).
EMDR Institute. What is EMDR (established procedures where a client becomes distressed or has difficulty progressing).
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