Which disorder is characterized by an unrealistic perception of physical flaws?

Body dysmorphic disorder (BDD) is defined by an intense preoccupation with perceived physical defects or flaws that are often minimal or not observable to others. Individuals with BDD typically engage in repetitive behaviors, such as checking mirrors or seeking reassurance about their appearance, driven by the belief that they have a defect that makes them unattractive or flawed. This preoccupation can lead to significant distress and impairment in social, occupational, or other areas of functioning.

On the other hand, while eating disorders may involve concerns about appearance and body image, they are primarily focused on weight control, eating behaviors, and body shape rather than the perception of specific physical flaws. Generalized anxiety disorder involves excessive worry about various aspects of life, but it does not center on distortions of physical appearance. Personality disorders represent a broad category of mental health issues characterized by enduring patterns of behavior, cognition, and inner experience, which can affect interpersonal functioning but do not specifically relate to perception of physical flaws.

The distinguishing feature of body dysmorphic disorder is the unrealistic judgment people make about their appearance, making it the correct response to this question.