The Eight Phases of EMDR Therapy

EMDR is delivered through a standardized eight-phase protocol. The structure matters: a substantial amount of preparation, safety, and relationship-building happens before any distressing memory is reprocessed. Understanding the phases can demystify the process and help you know what a competent course of EMDR should include.

The phases below reflect the standard model described by the EMDR International Association. In practice they are not always strictly linear — a clinician may move between them as needed — but every thorough EMDR treatment touches all eight.

Phase 1 — History-taking and treatment planning

The therapist gathers a full history, understands your current difficulties and goals, and identifies the specific memories, present triggers, and future situations that will become treatment targets. This phase also screens for readiness and safety — for example, whether your current circumstances are stable enough to begin reprocessing, and whether other supports need to be in place first.

Phase 2 — Preparation

Before any reprocessing, the therapist explains the approach, sets expectations, and — crucially — helps you build coping and self-regulation skills, such as grounding techniques and a mental "calm place." This stabilization work ensures you can manage strong emotion inside and outside sessions. For people with complex trauma, this phase may take considerable time, and that investment is a feature of good care, not a delay.

Phase 3 — Assessment

For a chosen target memory, you and the therapist identify its key components: a representative image, a negative belief about yourself connected to it (for example, "I am powerless"), a preferred positive belief ("I am safe now"), the emotions and body sensations involved, and baseline ratings using two standard scales — the Subjective Units of Disturbance scale for how upsetting the memory feels, and the Validity of Cognition scale for how true the positive belief feels.

Phase 4 — Desensitization

This is the reprocessing phase most people associate with EMDR. While briefly holding the target in mind, you follow sets of bilateral stimulation (eye movements, taps, or tones). Between sets you notice whatever arises — thoughts, images, feelings, sensations — and the therapist guides you onward, usually with a simple invitation to "notice that" and continue. Over repeated sets, the distress associated with the memory typically decreases until it feels neutral.

Phase 5 — Installation

Once the memory is no longer distressing, the work shifts to strengthening the positive belief you want to hold, pairing it with the memory through further sets of bilateral stimulation until it feels genuinely true rather than merely reasonable.

Phase 6 — Body scan

Because trauma is often held in the body, you are asked to notice any residual physical tension or sensation while thinking of the target and the positive belief. Any lingering disturbance is reprocessed until the body feels clear, reflecting the idea that a memory is not fully resolved while it still produces a physical charge.

Phase 7 — Closure

Every session, whether or not reprocessing is complete, ends with closure — returning you to a calm, grounded, present-focused state using the skills built in Phase 2. The therapist explains what to expect between sessions and how to self-soothe if material continues to surface. You should leave settled rather than raw.

Phase 8 — Reevaluation

At the start of the next session, the therapist checks what has changed, confirms that gains have held, and decides which target to work on next. This ongoing review continues until the agreed goals are met.

How long the phases take

There is no fixed timetable. For a single, recent trauma, preparation may be brief and reprocessing may progress quickly. For complex or repeated trauma, Phases 1 and 2 alone can span many sessions, because building safety and stability is the priority. A skilled clinician paces the work to you rather than to a schedule.

Why the structure matters

The eight-phase design is what distinguishes clinical EMDR from casually "moving your eyes." The emphasis on preparation and closure is a safety feature: it helps ensure you are resourced before difficult material is opened and settled again before you leave. When you are choosing a therapist, it is reasonable to ask how they approach preparation and stabilization — a thorough answer is a good sign. Next, see what a course of therapy typically looks like.