A sharp decline in cases followed, and the disorder was reclassified as "dissociative identity disorder" (DID) in DSM-IV. [7] In the 2020s, an uptick in DID cases followed the spread of viral videos about the disorder on TikTok and YouTube. [8]

DID is a severe form of dissociation, a mental process that produces a lack of connection in your thoughts, memories, feelings, actions, or sense of identity. The dissociative aspect is thought...

DID often co-occurs with other emotional conditions, including posttraumatic stress disorder (PTSD), borderline personality disorder (BPD), and a number of other personality disorders, as well as conversion disorder.

dissociative identity disorder (DID): formerly known as multiple personality disorder, is at the far end of the dissociative disorder spectrum. It is characterized by at least two distinct, and dissociated personality states.

DID is complex—but with the right knowledge, clinicians, caregivers, and communities can play a meaningful role in healing. This on-demand session clarifies DID’s clinical realities, reduces stigma, and offers grounded, evidence-based strategies for support.

Dissociative identity disorder (DID)—which many people recognize by its former name, multiple personality disorder—is one of Hollywood’s favorite psychology-related topics, with a decades-long history of movie and TV portrayals, most recently in this spring’s Moon Knight TV series.

It’s characterized by the presence of two or more dissociated self states that have the ability to take executive control and are associated with some degree of personal amnesia. For more information, see: DID in the DSM-5 Symptoms Presentation Prevalence Diagnosis Other relevant pages include Alters and Effects of Identity Alterations.