Dissociative identity disorder (DID), previously known as multiple personality disorder (MPD), is a dissociative disorder characterized by the presence of at least two personality states or "alters".

Dissociative identity disorder (DID) is a mental health condition where you have two or more interchangeable personalities. It’s usually the result of past trauma.

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, …

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. Proper …

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 …

In dissociative identity disorder, formerly called multiple personality disorder, 2 or more identities alternate being in control within the same person. These identities may have speech, …

Dissociative identity disorder (DID) is a type of dissociative disorder. It most often develops in early childhood among children who experience long-term trauma, such as emotional, …

Dissociative identity disorder (multiple personality disorder) is a condition characterized by disrupted identity formation due to trauma. Learn more.

Jul 27, 2025 · This guide illuminates DID systems through the dual lens of evidence-based research and lived experience, offering practical pathways toward integration and recovery.