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, …

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 …

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

Dec 20, 2025 · Having a split personality or multiple personalities means you have more than one distinct identity. The clinical term for this condition is dissociative identity disorder (DID). Learn …

Jun 30, 2025 · DID is associated with long-term exposure to trauma, often chronic traumatic experiences during early childhood. It is often misunderstood and portrayed incorrectly in …

Nov 28, 2025 · Learn what Dissociative Identity Disorder (DID) is, how trauma can lead to multiple identity states, symptoms, and why understanding DID matters for care and healing.

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.

Dissociative identity disorder (DID) is best known for alters, dissociated parts of the personality that the individual with DID experiences as separate from themself.