Dissociative Identity Disorder (DID) — formerly known as Multiple Personality Disorder — is a complex dissociative condition characterised by the presence of two or more distinct identity states that recurrently take control of a person's behaviour, accompanied by significant gaps in memory, sense of self, and continuity of experience.
DID is one of the most misrepresented conditions in popular culture and one of the most misunderstood in clinical practice. Dramatic portrayals in film and television bear little resemblance to what patients actually experience. The reality of DID is less spectacular and far more painful: it is a severe survival response to overwhelming early trauma, and the people who live with it typically do so for years — often decades — before receiving an accurate diagnosis.
DID is understood as a failure of normal integrative processes in the developing mind. When early experiences — particularly repeated, severe, or prolonged trauma — are overwhelming, the developing mind may partition experience into separate compartments as a protective mechanism. Over time, these partitions may develop into distinct identity states with their own patterns of perception, affect, behaviour, and memory.
The identity states in DID are not separate people. They are dissociated parts of a single individual — parts that developed in response to specific traumatic experiences and serve specific psychological functions. They may differ in age, gender, affect, and ways of experiencing the world. The transition between identity states — referred to as switching — may be experienced as a loss of time or a sense of coming to without memory of what preceded.
Amnesia — gaps in memory for everyday events, personal information, or traumatic experiences — is a central feature. These are structured gaps in autobiographical continuity that affect large portions of the person's life history, including memories for significant relationships, periods of childhood, or major life events.
The relationship between DID and early traumatic experience is constitutive, not incidental. The overwhelming majority of individuals with DID have histories of severe, repeated childhood trauma — most commonly childhood abuse, neglect, or other adverse experiences occurring before the normal consolidation of identity and memory.
DID is therefore not only a dissociative disorder — it is a trauma disorder. Its treatment must address the traumatic history that underlies it, though this must be approached carefully and sequentially, with full attention to stabilisation before any trauma-focused work begins.
DID is also frequently comorbid with PTSD, depression, anxiety disorders, borderline personality disorder, and eating disorders. The full clinical picture is typically complex.
The average time between onset of DID symptoms and accurate diagnosis is estimated at seven years or more. Many patients are initially diagnosed with depression, anxiety, PTSD, or borderline personality disorder — real co-occurring conditions that do not account for the dissociative structure of the presentation.
At IsraClinic, dissociative presentations are a recognised area of clinical attention. Accurate diagnosis requires a clinician who takes the patient's subjective experience seriously, is familiar with dissociative phenomenology, and conducts a thorough assessment using appropriate structured tools.
Assessment includes a comprehensive psychiatric interview exploring the patient's subjective experience of identity, memory, continuity, and dissociative phenomena; review of all prior clinical documentation; psychological assessment including dissociation-specific structured evaluation; assessment of trauma history in a safe and carefully paced format; and differential diagnosis addressing the full range of conditions that share features with DID.
The assessment is conducted with particular sensitivity — many patients with DID have histories of not being believed or having their experiences dismissed. Clinical trust is foundational.
Treatment of DID proceeds in three broadly sequential phases:
Phase 1 — Stabilisation and safety. Before any trauma-focused work, the primary goal is the establishment of safety, development of affect regulation skills, and building of a therapeutic alliance with all parts of the system. Attempting trauma processing before sufficient stabilisation is clinically contraindicated.
Phase 2 — Trauma processing. Once sufficient stabilisation is achieved, carefully paced work with the traumatic memories underlying the dissociative structure can begin. EMDR, adapted for complex dissociative presentations, is one of the most evidence-supported approaches for this phase. Psychodynamic approaches are also used.
Phase 3 — Integration and consolidation. Greater integration between identity states and development of a more cohesive sense of self. For some patients, full integration is the goal; for others, the aim is a cooperative and functional internal system that allows for effective daily living.
Pharmacotherapy does not treat DID directly but may be indicated for co-occurring conditions. Digital prescriptions are issued through the Yarpa system.
All treatment is delivered within the framework of the Psychoergonomic Method.
If you experience significant gaps in memory or time, find evidence of things you have done with no recollection, feel as if different parts of yourself have distinctly different thoughts or ways of being, or have received multiple psychiatric diagnoses without a satisfying clinical formulation — specialist assessment is appropriate.
IsraClinic accepts patients for in-person consultation in Tel Aviv and online, in English, Russian and Hebrew. No referral is required.
Clinical Reviewer: Dr. Mark Zevin, MD — Senior Psychiatrist | IsraClinic | Last reviewed: 2026
DID is a serious and treatable condition — and receiving an accurate diagnosis is often the most significant first step. Our team is available in English, Russian and Hebrew.