Dissociative disorders are conditions that involve disruptions or breakdowns of memory, awareness, identity, or perception. People with dissociative disorders use dissociation, a defense mechanism, pathologically and involuntarily. Dissociative disorders are thought to primarily be caused by psychological trauma. It is formerly known as multiple personality disorder. The presence of two or more distinct identities or personality states. Dissociative disorders are more common in women. They are associated with history of sexual abuse, post-traumatic stress disorder
, substance abuse, borderline personality
, somatoform conditions.