Dissociative identity disorder

Such patients experience recurrent, inexplicable intrusions into their conscious functioning and sense of self, alterations in sense of self, unexpected changes of perception, and intermittent and functional neurological symptoms.

12 month prevalence of DID among adult patients in the US for dissociative amnesia is 1.8%; and the lifetime prevalence for depersonalization/derealization disorder is approximately 2%.

In dissociative disorders auditory hallucinations are perceived as originating from within the person, commenting in their head instead of behind their back. 

Only 6% of patients with DID present withmultiple or dissociated identities publicly and in the obvious manner.

Majority of patients do not have dramatic shifts in personality and only persons very close to them are aware of the personality changes.

Headaches are the most frequent somatic complaint of patients with DID(60%).

Somatic symptoms such as headaches, joint pain, back pain, pelvic pain, extremity pain are more common in patients with DID than controls.

Dissociative amnesia is defined as an ability to recall autobiographical data beyond normal forgetfulness, and the condition may involve bewildered wondering or a fugue state.

Depersonalization / derealization disorder manifest by clinically significant persistent or recurrent depersonalization with detachment from the mind, self, or body, and or derealization, which is detachment from the surroundings.

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