Dissociation, which is one of the most complex mental conditions in the field of psychiatry, has been defined in various ways throughout the history of psychiatry and has been tried to be treated in different ways. Dissociation is clinically defined as a temporary disability in consciousness, memory and perception in its current meaning. Dissociation can sometimes appear as a symptom of other psychiatric diseases and sometimes as a disease on its own. There are four different types of clinical disassociation disorders, which are defined as Dissociative Identity Disorder, Dissociative Amnesia, Dissociative Fugue, Depersonalization and Derealization Disorders according to American Psychiatric Association's Mental Diseases Diagnostic Manual (DSM). It can manifest itself in different clinical pictures. Dissociative disorders, which may appear with symptoms such as changes in the perception of themselves and their environment, feeling alienated from their own body or environment, memory disorders. The symptoms usually generate after a stress factor which is acutely or chronically exposed, can also be caused frequently by alcohol or substance use, apart from psychological reasons. It is important to treat dissociative conditions that can weaken people's connection with reality. The main treatment method in dissociative disorders is psychotherapy.