Dissociative identity disorder (DID), formerly known as multiple personality disorder and split personality disorder, is a mental health condition where you have two or more separate identities.

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 …

Aug 11, 2025 · 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...

Feb 19, 2026 · You can have multiple identities that function independently if you have dissociative identity disorder (DID). Severe and repetitive childhood trauma often causes DID.

Sep 21, 2021 · Dissociative identity disorder (DID) is a rare condition in which two or more distinct identities, or personality states, are present in—and alternately take control of—an individual.

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 …

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, …