Personality Pathology in OCD
This chapter reviews the literature on personality pathology in obsessive-compulsive disorder (OCD). It begins by comparing and contrasting OCD with obsessive-compulsive personality disorder (OCPD). These two conditions have a longstanding yet frequently misunderstood relationship. Though they share some overlapping features, recent research has established OCD and OCPD as distinct conditions. Even so, OCD and OCPD frequently cooccur. The chapter reviews the literature on comorbidity and the impact of OCPD on the clinical course and treatment of OCD, including evidence that OCPD may complicate OCD treatment. It also describes other personality disorders observed in OCD. Finally, it describes recent advances in the conceptualization of personality disorders, including dimensional approaches, and concludes with directions for future research.