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 separate personalities that control your behavior at different times.

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. Proper treatment can …

What is dissociative identity disorder? Individuals with DID often also suffer from other mental illnesses, including posttraumatic stress disorder (PTSD), borderline and other personality disorders, and …

Nov 22, 2022 · Dissociative identity disorder (DID) is a rare mental health condition that is characterized by identity and reality disruption. Individuals with DID will exhibit two or more distinct personality …

Jul 3, 2025 · If you or someone you know is struggling with symptoms of DID or related trauma, seek help from a qualified mental health professional experienced in treating dissociative disorders. …

Oct 9, 2025 · Stress can cause quick switching between identities in people with DID. Sights, sounds, and smells can trigger identity changes in someone with DID. Drinking alcohol and using drugs can …

Mar 13, 2021 · Dissociative identity disorder is an often misunderstood condition, but the tide is turning. Learn about the symptoms of DID here.