What is differential diagnosis in terms of personality order?
The personality disorders are grouped into three separate classes: eccentric disorders, erratic disorders, anxious disorders.
Since the symptoms of personality disorders can coincide with the symptoms of other disorders, the clinician needs to exclude the behaviours that do not occure in other medical conditions or mental disorders such that: post traumatic stress disorders, depression, anxiety, substance abuse or dissociative disorders.
The diagnostic of a personality disorder is hard to be established, although this is based on long predictive diagnostic tests and interviews. Despite the experience of high qualified professionals that strictly observe these tests, the results of the tests are not all the time accurate and the identification of the type of personality disorder fails.