6.2 Body Dysmorphic Disorder and Hoarding Disorder

Body Dysmorphic Disorder and Hoarding Disorder

Body dysmorphic disorder (BDD) and hoarding disorder both involve persistent, intrusive thoughts and repetitive behaviors that cause distress and impair daily functioning. They sit within the obsessive-compulsive and related disorders category in the DSM-5 because they share core features with OCD, but each has a distinct focus: BDD centers on perceived physical flaws, while hoarding centers on difficulty discarding possessions.

Body Dysmorphic Disorder

Features of Body Dysmorphic Disorder

The defining feature of BDD is a preoccupation with perceived defects or flaws in physical appearance that are either not observable to others or appear only minor. People with BDD don't just dislike how they look; they become consumed by it in ways that take over their daily routine.

Common areas of focus include skin (acne, scarring, wrinkles), hair (thinning, texture), the nose, and muscularity. In response to these perceived flaws, individuals engage in repetitive behaviors such as:

• Excessive mirror checking (or, in some cases, mirror avoidance)
• Excessive grooming, skin picking, or camouflaging with makeup or clothing
• Repeatedly seeking reassurance from others about their appearance
• Comparing their appearance to others

These preoccupations and behaviors cause significant distress and impairment in social, occupational, or other areas of functioning. Someone with BDD might avoid social situations entirely, struggle to maintain relationships, or find it hard to concentrate at work or school because they can't stop thinking about the perceived flaw.

One important diagnostic distinction: the appearance preoccupation in BDD is not better explained by concerns with body fat or weight that would fit an eating disorder diagnosis. If someone's primary concern is being "too fat," clinicians consider an eating disorder first.

BDD and Hoarding vs. OCD

BDD, hoarding disorder, and OCD all involve intrusive thoughts and repetitive behaviors that cause significant distress. That's why they're grouped together in the DSM-5. But the differences matter for diagnosis and treatment.

• Content of the preoccupation differs. OCD obsessions can revolve around many themes (contamination, symmetry, harm, taboo thoughts), while BDD obsessions focus specifically on perceived appearance flaws. Hoarding disorder centers on the difficulty of discarding possessions and the excessive acquisition of items, which is not a core feature of OCD.
• The function of the repetitive behaviors differs. In OCD, compulsions are typically performed to reduce anxiety or prevent a feared outcome (e.g., washing hands to prevent contamination). In BDD, repetitive behaviors are driven by the urge to check, fix, or hide the perceived flaw. In hoarding, the difficulty discarding items is driven by a perceived need to save them and the distress that comes with letting go.
• Insight levels can vary across all three, but people with BDD often have particularly poor insight, genuinely believing the perceived flaw is as severe as they experience it.

Hoarding Disorder

Criteria for Hoarding Disorder

Hoarding disorder has three core diagnostic criteria:

1. Persistent difficulty discarding or parting with possessions, regardless of their actual value. This difficulty stems from a perceived need to save the items and distress associated with discarding them.
2. The difficulty discarding possessions results in an accumulation that congests and clutters active living areas, substantially compromising their intended use. If living areas are uncluttered only because of intervention by third parties (family members, cleaning services, authorities), the diagnosis still applies.
3. The hoarding causes clinically significant distress or impairment in social, occupational, or other areas of functioning.

Several additional features are commonly seen:

• Excessive acquisition of items that are not needed or for which there is no available space. This can include buying, collecting free items, or even stealing.
• Indecisiveness and avoidance around decisions about what to discard. Many individuals with hoarding disorder struggle with perfectionism about making the "right" choice, so they avoid the decision altogether.
• Strong emotional attachment to possessions. Items may provide a sense of safety, comfort, or identity, making discarding feel like losing a part of themselves.

Impact on Daily Functioning

Both BDD and hoarding disorder can severely disrupt everyday life, though in different ways.

For BDD, the time consumed by appearance-related behaviors is a major factor. Someone might spend hours each day checking mirrors, grooming, or mentally reviewing their perceived flaw. This leads to:

• Difficulty attending work or school consistently
• Social isolation due to avoidance of situations where others might see them
• Co-occurring depression and anxiety, which are very common with BDD

For hoarding disorder, the accumulation of possessions creates concrete, physical consequences:

• Living spaces become unusable for their intended purposes (kitchens can't be used for cooking, beds are buried under items)
• Unsafe or unsanitary conditions develop, including fire hazards, pest infestations, and structural damage
• Financial difficulties from excessive acquisition, strained family relationships, and in severe cases, legal issues related to housing codes or public health violations

Both disorders carry significant emotional weight. Feelings of shame, guilt, and embarrassment are common, and these feelings often make it harder to seek help. Stigma around both conditions can lead individuals to hide their symptoms, delaying treatment.