A psychologist is evaluating a client believed to be suffering from borderline personality disorder. In order to be sure about the diagnosis, what other personality disorders should be considered?

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Borderline personality disorder often overlaps with histrionic and antisocial personality disorders, so those should be considered in order to rule out alternative diagnoses. Narcissistic and schizoid personality disorders may share some features with borderline personality disorder, but are not as commonly comorbid. Dependent and avoidant personality disorders are less likely to be confused with borderline personality disorder, as they involve different symptoms and patterns of behavior. Antisocial and schizotypal personality disorders may also have some similarities, but are less closely associated with borderline personality disorder than histrionic and antisocial personality disorders.

A Psychologist Is Evaluating a Client Believed to Be Suffering