Dissociative identity disorder (DID) is a mental health condition where you have two or more separate personalities that control your behavior at different times.

In controlled studies, non-specialised treatment that did not address dissociative self-states did not substantially improve DID symptoms, though there may be improvement in patients' other conditions.

Oct 4, 2025 · Dissociative identity disorder—also known as split personality disorder—is a psychiatric condition. It occurs when a person has multiple identities.

Dissociative identity disorder (DID), commonly known as multiple personality disorder (MPD), is a contentious mental health condition that typically arises as a result of traumatic events to help people …

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.

1 day ago · Despite this, some people with DID do identify as having a core self/original personality, and people with DID are not required to perfectly fit current theory in order to meet the diagnostic criteria.

Mar 28, 2024 · Sometimes called multiple personality disorder or split personality disorder, DID is a trauma coping mechanism gone awry. Learn about symptoms, causes, and treatment options.

May 10, 2021 · Dissociative identity disorder (DID) is a mental health condition with strong links to trauma, especially trauma in childhood. Understanding the causes can help you manage this condition.

The authors explain what DID is and underline what causes the symptoms. Read practical suggestions for those living with and coming to terms with the condition.