Body dysmorphic disorder (BDD) is a mental health condition where an individual becomes excessively preoccupied with perceived flaws in their physical appearance, which are often not noticeable to others. This disorder can lead to significant emotional distress and impairment in daily functioning, as individuals may engage in compulsive behaviors to fix or hide these perceived flaws. The disorder is closely related to other obsessive-compulsive spectrum disorders, including hoarding disorder, where individuals struggle with the difficulty of discarding possessions due to emotional attachments.