Chapter Overview

In Chapter 5, we will discuss matters related to obsessive-compulsive and related disorders including their clinical presentation, diagnostic criteria, epidemiology, comorbidity, etiology, and treatment options. Our discussion will include obsessive-compulsive disorder (OCD), body dysmorphic disorder (BDD), and hoarding disorder. However, it is worth noting that trichotillomania (excessive hair pulling), and excoriation disorder (excessive skin picking) were recently added to the new obsessive-compulsive and related disorders section of the DSM 5.

Chapter Outline

• 5.1. Obsessive-Compulsive Disorder (OCD)
• 5.2. Body Dysmorphic Disorder (BDD)
• 5.3. Hoarding Disorder

Chapter Learning Outcomes

• Describe obsessive-compulsive disorder, body dysmorphic disorder, and hoarding disorder.
• Describe the epidemiology of obsessive-compulsive and related disorders.
• Describe comorbidities of obsessive-compulsive disorder and body dysmorphic disorder.
• Describe the etiology of these disorders.
• Describe treatment options for these disorders.