Body Dysmorphic Disorder and Eating Disorders

Abstract

This chapter addresses the comorbid presentation of body dysmorphic disorder (BDD) and disordered eating. BDD affects approximately 2% of the population and involves perceived defects of appearance along with obsessive preoccupation and repetitive, compulsive-like behaviors. The prevalence of comorbid BDD and eating disorders is high: Approximately one–third of those with BDD will have a comorbid eating disorder, and almost half of those with an eating disorder will have comorbid BDD. There are complicating diagnostic and treatment factors that arise when an individual experiences both. A core feature of these disorders is body image concern, which may be explained by both shared and unique aberrancies in visual and visuospatial processing that have neurobiological underpinnings. Understanding shared and unique pathophysiology may help inform and guide treatment, as well as open up lines of future research into their etiology.