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

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.

A person diagnosed with DID will generally feel a discontinuity in their sense of self and experience changes in identifies—each with their own personalities, names, stories, and mannerisms.

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 conversion disorder.

DID is complex—but with the right knowledge, clinicians, caregivers, and communities can play a meaningful role in healing. This on-demand session clarifies DID’s clinical realities, reduces stigma, and offers grounded, evidence-based strategies for support.

Dissociative identity disorder (DID) is the disorder that was previously recognized as multiple personality disorder. It’s characterized by the presence of two or more dissociated self states, known as alters, that have the ability to take executive control and are associated with some degree of inter-identity amnesia.

DID is a trauma-related condition involving distinct identity states. Learn how it develops, what sets it apart from other disorders, and how treatment works.

Dissociative identity disorder (DID) is a mental health condition where an individual holds numerous distinct identities, often referred to as “alters.” Previously labeled multiple personality disorder, this condition remains widely misunderstood.