Dissociative Identity Disorder: Does it exist?

What is DID?

Dissociative Identity Disorder (DID), as defined in the DSM-5, is a disruption in identity in which a person presents multiple distinct personalities (also called alters).These personalities have different behaviors, memories, and perceptions. They may also present themselves with different names and appearances as if they are distinct people. Individuals with DID experience memory gaps between different alters, causing disruptions in daily life. The existence of DID has been debated amongst professionals for decades, in order to have an effective treatment for DID, we have to acknowledge whether it exists or not.

Myth 1: DID is a Fad

One popular belief about DID diagnoses is that it was a trend, and has died out. However, cases of DID have existed from hundreds of years ago. DID has also been portrayed and edited in multiple versions of the DSM, disproving that it was a short trend. Critics also state DID is mostly diagnosed in North America by a small group of specialists and is overdiagnosed. However, an international treatment study included 232 DID patients from 16 countries spanning every continent except Antarctica. About 40% of these studies used structured diagnostic interviews, showing that DID is diagnosed with standardized methods rather than only by experts. Community studies found DID in about 1.1%–1.5% of the general population, including representative samples from New York and Turkey. Critics also claim that DID is created by therapists or social influences, but research provides little support for this claim. A review of nearly 1,500 studies found strong evidence linking childhood trauma and abuse to dissociation, while finding only weak evidence that suggestibility or fantasy explains DID.

Myth 2: DID is Misdiagnosed

Although DIDz and borderline personality disorder (BPD) share symptoms, research indicates they are separate disorders that can also occur together. The main differences are that DID involves significant amnesia, while people with BPD generally remember their actions despite emotional shifts. Preliminary brain imaging also suggests the disorders have different patterns of neural activity. Because DID and BPD require different treatment approaches, accurately identifying whether a person has one or both disorders is important for effective care. Some critics argue that treatment for DID is harmful, but studies have found that patients generally experience reduced dissociation, depression, self-harm, and improved daily functioning after treatment. Current evidence indicates that appropriate, diagnosis and trauma-informed treatment for DID is beneficial and helps stabilize and improve patients' functioning.

Why Acknowledgement is Important

Research suggests that dissociative identity disorder is often underrecognized and undertreated, leading many patients to spend years in treatment before receiving the correct diagnosis. Delayed diagnosis contributes to ongoing disability, high rates of self-harm and suicide, and greater use of costly psychiatric services. Misconceptions about DID may discourage clinicians from assessing for the disorder and reduce research, training, and funding opportunities. Overall, replacing myths with evidence-based understanding is essential to improve patient care and advance research.

https://pmc.ncbi.nlm.nih.gov/articles/PMC4959824/