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 · When you have DID, you have two or more separate identities called “alters.” They control your behavior at various times. Each alter has its own personal history, traits, likes, and dislikes.

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.

Oct 4, 2025 · Severe and repetitive childhood trauma often causes dissociative identity disorder (DID). You can have multiple identities that function independently if you have DID.

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 …

Dec 8, 2025 · Previously known as multiple personality disorder or split personality disorder, DID causes a distinct break or discontinuity in a person's memory, perceptions, thoughts, and behaviors. These …

Because DID has been misunderstood and is hard to detect, it is often called a rare condition. In fact, DID occurs in approximately 1% of the general population.

Jul 3, 2025 · DID is fundamentally a trauma-related disorder that typically develops during early childhood as a response to severe, chronic abuse or trauma. The condition involves disruptions in …

Dissociative Identity Disorder (DID), previously known as Multiple Personality Disorder, is a complex psychological condition characterized by the presence of two or more distinct personality states or …