“Incestuous abuse is not necessarily related to the most severe, polyfragmented forms of MPD; however, ritual abuse, with or without incest, is the most common underlying cause of polyfragmentation for MPD [DID] or dissociative disorders NOS.” Dissociative Identity DisorderIncestRitual AbuseDissociative DisorderPolyfragmentedPolyfragmented DidPolyfragmentation Book:Incest-Related Syndromes of Adult Psychopathology Source: Incest-Related Syndromes of Adult Psychopathology