Residency · Residency · Psychiatry
Body Dysmorphic Disorder and Hoarding Disorder
Body Dysmorphic Disorder (BDD)
Epidemiology
Point prevalence: ~2% in the general population; up to 12-15% in dermatology and cosmetic surgery settings. Equal gender distribution (slight male predominance in some studies) Onset: typically adolescence (mean age 16); rarely diagnosed before puberty. Frequently missed: mean delay to diagnosis is 10-15 years. Among the most impairing psychiatric disorders -- functional impairment comparable to MDD.
DSM-5-TR Diagnostic Criteria
Preoccupation with one or more perceived defects or flaws in physical appearance that are not observable or appear slight to others. Repetitive behaviors (mirror checking, excessive grooming, skin picking, reassurance seeking) or mental acts (comparing appearance to others) in response to appearance concerns. Clinically significant distress or functional impairment. Not better explained by an eating disorder (if concerns are limited to body weight/fat) Specifier: with muscle dysmorphia (preoccupation that one's body build is too small or insufficiently muscular; almost exclusively males) Insight specifier: good/fair insight, poor insight, or absent insight/delusional beliefs.
Common Areas of Concern
Skin (acne, scars, wrinkles, complexion) -- most common. Hair (thinning, balding, excessive body hair) Nose (size, shape) Eyes, teeth, weight, muscularity. Concerns may shift over time to different body parts.
BDD vs. OCD: Key Distinctions
| Feature | Body Dysmorphic Disorder | OCD |
|---|---|---|
| Core preoccupation | Perceived appearance defect | Intrusive thoughts (contamination, harm, symmetry, etc.) |
| Insight | Often poor or absent (~30-40% delusional) | Usually good or fair |
| Referential thinking | Common (believes others notice/mock the defect) | Uncommon |
| Suicidality | Very high (~80% ideation, ~25% attempts) | Elevated but lower than BDD |
| Cosmetic treatment seeking | 70-80% seek procedures | Not applicable |
| Response to SRI | ~50-70% (high doses required) | ~40-60% |
| Antipsychotic monotherapy | NOT effective (even when delusional) | NOT effective |
| Gender distribution | Equal | Equal |
Insight and Delusional Variant
~30-40% of BDD patients have absent insight (delusional beliefs about their appearance) Previously classified as "delusional disorder, somatic type" -- now recognized as BDD with absent insight. Delusional and non-delusional BDD respond to the same treatments (SRIs, CBT) -- antipsychotic monotherapy is NOT effective. This is a key clinical distinction: even when beliefs are delusional in conviction, treat as BDD, not as a primary psychotic disorder.
Relationship to OCD Spectrum
Classified under "Obsessive-Compulsive and Related Disorders" in DSM-5-TR. Shared features: intrusive, distressing preoccupations + repetitive behaviors. Higher rates of comorbid OCD (up to 30%) Key differences from OCD: poorer insight, higher rates of suicidality, more referential thinking (believing others are noticing/mocking the defect)
Suicidality
BDD carries extremely high suicide risk: ~80% report suicidal ideation, ~25% have attempted suicide. One of the highest suicide rates among psychiatric disorders. Cosmetic procedures do NOT reduce suicidality and may worsen symptoms.
Cosmetic and Dermatologic Treatment Seeking
70-80% of BDD patients seek cosmetic procedures (dermatologic, surgical) Procedures almost never improve BDD symptoms; may worsen preoccupation or shift focus to a new area. Providers in dermatology, plastic surgery, and dentistry should screen for BDD before elective procedures. Recommended screening instrument: Body Dysmorphic Disorder Questionnaire (BDDQ)
Treatment of BDD
Pharmacotherapy
First-line: SRIs at HIGH doses (often higher than for depression; comparable to OCD dosing) Fluoxetine 60-80 mg, escitalopram 30 mg, fluvoxamine 200-300 mg, clomipramine 150-250 mg. Response rate: ~50-70%. Adequate trial: 12-16 weeks at maximum tolerated dose. Augmentation for partial responders: atypical antipsychotics (aripiprazole, risperidone) -- evidence is limited but used in clinical practice. Antipsychotic monotherapy is NOT effective -- even in delusional BDD. Relapse is common with SRI discontinuation; many patients require long-term treatment.
Psychotherapy
CBT adapted for BDD (CBT-BDD, Wilhelm/Phillips protocol):. Psychoeducation about BDD. Cognitive restructuring of appearance-related beliefs. Exposure and response prevention: exposure to avoided situations (social, mirrors) while preventing rituals (checking, reassurance seeking, camouflaging) Perceptual retraining: shifting from selective attention to perceived flaws to holistic processing of appearance. Mindfulness-based strategies. Duration: typically 12-22 sessions. Combination of SRI + CBT-BDD is often the most effective approach for moderate-to-severe cases.
Hoarding Disorder
Overview and Classification
New as a standalone diagnosis in DSM-5 (previously subsumed under OCD) Distinct neurobiology, clinical presentation, and treatment response from OCD. Prevalence: ~2-6% in population-based studies. Increases with age; clinical severity typically worsens over time. Equal gender distribution in community samples (males may be overrepresented in clinical samples)
DSM-5-TR Diagnostic Criteria
Persistent difficulty discarding or parting with possessions, regardless of their actual value. Difficulty is due to a perceived need to save the items and distress associated with discarding them. Accumulation of possessions that congest and clutter active living areas, substantially compromising their intended use (unless third parties intervene) Clinically significant distress or impairment in functioning (social, occupational, maintaining a safe environment) Not attributable to another medical condition (brain injury, cerebrovascular disease) Not better explained by another mental disorder (OCD obsessions, MDD low energy, schizophrenia delusions, neurocognitive disorder) Specifiers: with excessive acquisition; with good/fair, poor, or absent insight.
Neurobiology
Distinct from OCD: different patterns of activation in anterior cingulate cortex and insula during discarding decisions. Abnormal decision-making and categorization abilities. Emotional attachment to possessions is a core feature (not contamination fear or symmetry need as in OCD) Genetic contribution: ~50% heritability in twin studies.
Comorbidity and Complications
High comorbidity with MDD (50-60%), GAD, SAD, ADHD. OCD comorbidity: ~20% (but hoarding is NOT a subtype of OCD) Medical and safety hazards: fire risk, fall risk, vermin infestation, inability to use kitchen/bathroom, code violations and eviction. Social isolation, family conflict, impaired work functioning. Hoarding in elderly individuals may trigger adult protective services involvement.
Treatment of Hoarding Disorder
CBT adapted for hoarding (Steketee and Frost protocol):. Psychoeducation about hoarding. Skills training: organizing, problem-solving, decision-making about possessions. Exposure: practicing discarding, resisting acquiring. Cognitive restructuring: challenging beliefs about possessions (responsibility, waste, identity) Home visits or virtual sessions to practice in the hoarding environment. Response rates more modest than CBT for OCD (~25-40% responders) Pharmacotherapy: SRIs are often tried but evidence for hoarding disorder specifically is limited. Hoarding symptoms in OCD respond less well to SRIs than other OCD symptoms. Venlafaxine and stimulants (for comorbid ADHD/executive dysfunction) are sometimes used; evidence is preliminary. Harm reduction approach: prioritize safety (clear egress pathways, fire safety) when full treatment is not accepted. Peer-led support groups and community-based interventions may improve engagement.
<image> A diagnostic comparison table of body dysmorphic disorder versus obsessive-compulsive disorder. Two columns. Compare: core preoccupation content, insight levels, associated behaviors, suicidality risk, referential thinking, response to SRIs, response to antipsychotic monotherapy, cosmetic treatment seeking, and DSM-5 classification. Highlight key distinguishing features. Clinical reference format. </image>
<image> A diagram illustrating the cognitive-behavioral model of body dysmorphic disorder. Show the cycle: trigger (seeing reflection, social situation) leads to selective attention to perceived defect, which activates negative appraisal ("I look deformed"), leading to emotional distress (shame, anxiety, disgust). This drives repetitive behaviors (mirror checking, camouflaging, reassurance seeking) and avoidance (social withdrawal). Safety behaviors and avoidance prevent disconfirmation, maintaining the cycle. Label intervention points for CBT-BDD: cognitive restructuring, ERP, perceptual retraining. Educational diagram style. </image>
<image> An infographic on hoarding disorder showing the three core features: difficulty discarding, excessive clutter in living spaces, and distress/impairment. Include visual representations of safety hazards (blocked exits, fire risk, fall risk), comorbid conditions (depression, anxiety, ADHD), and the treatment approach (CBT for hoarding with components: skills training, exposure to discarding, cognitive restructuring, home visits). Include the statistic that hoarding disorder affects 2-6% of the population. Clinical education format. </image>
Clinical Pearls
BDD is drastically underdiagnosed because patients rarely volunteer appearance concerns to psychiatrists -- they go to dermatologists and surgeons instead; screen proactively in patients with depression, social avoidance, and repetitive behaviors. Even when BDD beliefs are delusional in conviction, treat with SRIs and CBT -- antipsychotic monotherapy does not work. SRI doses for BDD are typically HIGH (OCD-range doses), and adequate trials require 12-16 weeks -- do not give up prematurely. Cosmetic procedures are generally contraindicated in BDD -- they do not improve symptoms and may worsen the condition. Hoarding disorder is NOT a subtype of OCD -- it has distinct neurobiology, responds poorly to standard OCD treatments, and requires specialized CBT with home-based components. Hoarding in the elderly is a safety emergency even when the patient lacks insight -- prioritize harm reduction (clear egress, fire safety) alongside treatment engagement efforts.
References
- Phillips KA. Understanding Body Dysmorphic Disorder. Oxford University Press; 2009.
- Wilhelm S, et al. Cognitive-behavioral therapy for body dysmorphic disorder: a treatment manual. Guilford Press; 2013.
- Steketee G, Frost RO. Compulsive Hoarding and Acquiring: Therapist Guide. Oxford University Press; 2007.
- Veale D, et al. Body dysmorphic disorder in different settings: a systematic review and estimated weighted prevalence. Body Image. 2016;18:168-186.
- Mataix-Cols D, et al. Hoarding disorder. Lancet. 2014;384(9957):1842-1848.
