Perceived defects refer to the subjective belief that one has physical flaws or imperfections that are often exaggerated and not noticeable to others. This term is particularly relevant in understanding the psychological distress associated with conditions like Body Dysmorphic Disorder, where individuals become preoccupied with these imagined defects, leading to significant impairment in daily functioning. Similarly, in the context of Hoarding Disorder, perceived defects can manifest as a fear of not having enough or the belief that possessions are somehow flawed, driving compulsive behaviors surrounding acquiring and retaining items.