Multiple personality disorder, currently referred to as dissociative identity disorder, requires a diagnosis by a psychiatrist experienced in psychiatric practice and cannot be self-tested. Dissociative identity disorder, which is characterized by the presence of at least two and relatively persistent identities or unconnected personalities that alternate in controlling the individual’s behavior and are accompanied by impaired memory for important events that cannot be explained by the usual amnesia. The diagnosis generally requires the fulfillment of the following: 1. the presence of 2 or more identity disintegrations characterized by distinct personality states, which may be described in some cultures as an experience of being possessed by (supernatural forces). Identity disintegration involves a marked disruption of self-perception and sense of self-control, accompanied by changes related to emotion, behavior, consciousness, memory, perception, cognition, or sensorimotor functioning. 2. There are recurrent gaps in recall of everyday events, important personal information, and traumatic events that are inconsistent with ordinary amnesia. 3. these symptoms cause clinically meaningful distress or lead to impairment in social, occupational, or other important aspects of functioning. 4. the disorder is not part of a broadly acceptable cultural or religious practice. Rule out other disorders. When the above symptoms occur, you should seek medical attention from a specialized hospital to avoid adverse consequences.