Body Image Disturbance Questionnaire (BIDQ)
Body Image Disturbance Questionnaire · Also known as: BIDQ, Body Dysmorphic Disorder Questionnaire, Appearance Concern Screen
The BIDQ is a brief self-report questionnaire screening for body dysmorphic disorder (BDD), a disorder characterized by preoccupation with a perceived defect in appearance and repetitive behaviours (mirror checking, grooming, comparing with others). Developed by Castle and colleagues, the BIDQ focuses on the core diagnostic features of BDD: appearance concern, functional impairment, and repetitive behaviours. It is used in clinical, cosmetic dermatology, and research settings to identify individuals who may have BDD.
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When to use it
The BIDQ is recommended for screening body dysmorphic disorder in clinical mental health settings, cosmetic dermatology, plastic surgery clinics, and psychiatric research. It is appropriate for adolescents (14+) and adults. The BIDQ is particularly valuable in cosmetic settings where patients present with appearance concerns; identifying those with BDD (who often have poor psychological outcomes despite surgery) versus those with reasonable appearance concerns is important for treatment planning. The BIDQ is less appropriate as a diagnostic tool on its own (requires clinical interview) or as a measure of general body dissatisfaction (more suitable for eating disorder or body image research).
Strengths & limitations
- Extreme brevity — 7 items, 2–5 minute completion, making it practical for busy clinical settings.
- Targets core BDD features — focuses on preoccupation with imperceptible flaws, functional impairment, and repetitive behaviours that distinguish BDD from normative body concerns.
- Useful in cosmetic settings — can identify BDD cases presenting for cosmetic dermatology or surgery, who may have poor outcomes post-intervention.
- Good sensitivity — captures most individuals with BDD, reducing false negatives.
- Free and widely available — no licensing fees; can be administered in any clinical setting.
- Moderate specificity — false positives occur; not all high BIDQ scores indicate BDD, requiring clinical follow-up for confirmation.
- Does not diagnose BDD — clinical interview and DSM-5 criteria assessment are necessary for formal diagnosis.
- Limited assessment of compulsive behaviours — BIDQ assesses repetitive behaviours (mirror checking, grooming) but does not quantify their severity or frequency in detail.
- Does not measure insight — individuals with BDD often have poor insight into the perceived defect and may not endorse all BIDQ items despite clinical BDD.
- Minimal assessment of impact — functional impairment items are limited; a more comprehensive measure may be needed to assess actual life interference.
Frequently asked
I scored 6 on the BIDQ. Do I have body dysmorphic disorder?
A BIDQ score of 6 suggests possible body dysmorphic disorder warranting further evaluation. However, BIDQ screening is not diagnosis. Body dysmorphic disorder is diagnosed by clinical interview assessing: preoccupation with a specific perceived appearance defect, repetitive behaviors (mirror checking, grooming, comparing with others), significant distress or functional impairment, and that the concern is not better explained by body weight/shape concerns or other disorders. Discuss with a mental health professional for proper evaluation.
What's the difference between BDD and just being concerned about my appearance?
Normative appearance concern is mild, flexible (concerns change), and does not significantly interfere with functioning. BDD involves: (1) preoccupation with a specific perceived defect others may not notice or perceive as slight, (2) repetitive behaviors (mirror checking, excessive grooming) that are difficult to resist, (3) marked emotional distress and/or significant functional impairment (social withdrawal, work/school avoidance, avoidance of being seen), and (4) time-consuming preoccupation (hours daily). If your appearance concern causes you significant distress or interferes with your life, seek professional evaluation.
I scored high on BIDQ but am concerned about cosmetic surgery. Should I proceed?
If you screen positive for BDD, seek psychiatric evaluation before cosmetic procedures. BDD often does not improve post-surgery and may worsen as appearance concerns shift to other body areas or the surgical result does not resolve emotional distress. Most surgeons and dermatologists recommend psychological assessment and treatment of BDD prior to cosmetic procedures. Cognitive-behavioural therapy for BDD is evidence-based and more likely to improve quality of life than surgery.
Can I use BIDQ to screen for eating disorders?
No. The BIDQ screens for body dysmorphic disorder (concern with specific imperceptible appearance flaws and repetitive behaviors). Eating disorders involve concern with weight and shape (not specific isolated defects). Use EDE-Q or BSQ for eating disorder screening. Some individuals have both BDD and eating disorder features; comprehensive assessment by a mental health professional is recommended to distinguish or identify comorbidity.
Sources
- Mancuso, S. G., Knoesen, N. P., & Castle, D. J. (2010). The Dysmorphic Concern Questionnaire: A screening measure for body dysmorphic disorder. Australian & New Zealand Journal of Psychiatry, 44(6), 535–542. DOI: 10.3109/00048671003596055 ↗
- Grant, J. E., Kim, S. W., & Eckert, E. D. (2002). Body dysmorphic disorder in patients with body image concerns visiting cosmetic dermatologists. Journal of Psychiatric Research, 36(6), 379–385. link ↗
- Castle, D. J., Rossell, S. L., & Cecil, D. (2006). Concealment of delusions and obsessions in body dysmorphic disorder. Australian & New Zealand Journal of Psychiatry, 40(1), 19–22. link ↗
How to cite this page
ScholarGate. (2026, June 3). Body Image Disturbance Questionnaire. ScholarGate. https://scholargate.app/en/clinical-psychology/body-image-disturbance-questionnaire
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