Body Dysmorphic Disorder (BDD)

Body Dysmorphic Disorder involves an intense preoccupation with one or more perceived defects or flaws in physical appearance — commonly involving skin, hair, nose, or muscle build — that others do not notice or consider minor. This preoccupation drives repetitive behaviors such as mirror checking or avoidance, excessive grooming, skin picking, camouflaging with makeup or clothing, and frequently seeking cosmetic reassurance or procedures, none of which bring lasting relief.

BDD is defined as preoccupation with one or more perceived defects or flaws in physical appearance that are not observable or appear only slight to others, accompanied by repetitive behaviors (such as mirror checking, excessive grooming, skin picking, or reassurance seeking) or mental acts (such as comparing one's appearance to others), causing significant distress or impairment, and not better explained by an eating disorder if concerns are limited to body fat or weight.

BDD develops through a combination of genetic vulnerability, perfectionistic and aesthetically sensitive temperament, and environmental experiences such as childhood teasing or bullying about appearance. Sociocultural pressure around appearance, amplified by social media, can also contribute to the intensity and focus of the preoccupation, though it is not considered a sole cause in someone without underlying vulnerability.

• Family history of BDD, OCD, or other obsessive-compulsive spectrum conditions
• History of teasing, bullying, or criticism about appearance, especially in childhood or adolescence
• Perfectionistic personality traits
• Low self-esteem
• History of trauma or abuse
• Heavy engagement with appearance-focused social media

Neuroimaging studies show that people with BDD tend to process visual information about faces and appearance abnormally, focusing on small details rather than the whole picture in a way that exaggerates perceived flaws. This overlaps with, but is distinct from, the CSTC circuit dysfunction seen in OCD, and serotonergic dysregulation is similarly implicated, explaining the shared effectiveness of SSRIs across both conditions.

• Preoccupation with perceived flaws in skin, hair, nose, or other features
• 'Muscle dysmorphia' — preoccupation with being insufficiently muscular or lean, more common in men
• Excessive mirror checking, or complete mirror avoidance
• Camouflaging behaviors — heavy makeup, specific clothing, or posture to hide the perceived flaw
• Excessive grooming, skin picking, or hair removal related to the perceived flaw
• Repeatedly seeking reassurance about appearance from others
• Frequent comparison of one's appearance to others or to photos
• Repeatedly seeking dermatological or cosmetic procedures that fail to bring lasting relief

• Preoccupation with one or more perceived defects in physical appearance that are not observable or appear only slight to others
• Repetitive behaviors (mirror checking, grooming, skin picking, reassurance seeking) or mental acts (comparing appearance) in response to the concern
• Causes clinically significant distress or impairment
• Not better explained by concerns limited to body fat or weight in an eating disorder

Conditions a psychiatrist will consider and rule out before confirming this diagnosis:

Eating Disorders

If preoccupation is limited specifically to body weight or fat, an eating disorder diagnosis is more appropriate.

Obsessive-Compulsive Disorder

OCD obsessions are typically broader than appearance; BDD is diagnosed specifically for appearance-focused preoccupation.

Social Anxiety Disorder

Social avoidance in social anxiety stems from fear of general negative judgment, not specifically a perceived physical flaw.

Normal appearance concern

Everyday dissatisfaction with appearance lacks the significant distress, time consumption, and repetitive behaviors seen in BDD.

• Clinical interview specifically asking about appearance-related preoccupation, as patients often feel ashamed and may not volunteer this
• BDD-YBOCS (a modified Yale-Brown scale) to assess severity
• Careful screening for suicidal ideation, given notably elevated suicide risk in BDD
• History of dermatological or cosmetic procedures sought or undergone

SSRIs, often at doses similar to those used in OCD, combined with CBT adapted specifically for BDD (including exposure and response prevention for checking/camouflaging behaviors and perceptual retraining) form the core evidence-based treatment. Cosmetic or dermatological procedures are strongly discouraged as a primary treatment, since they rarely resolve the underlying preoccupation and can sometimes worsen symptoms or shift focus to a new perceived flaw.

SSRIs (e.g., fluoxetine, sertraline, escitalopram)

First-line, frequently requiring higher doses similar to OCD treatment.

Clomipramine

An option when SSRIs are insufficient, under specialist guidance.

Cognitive Behavioral Therapy for BDD

Combines cognitive work on appearance-related beliefs with exposure and response prevention for checking, camouflaging, and reassurance-seeking behaviors.

Perceptual retraining

Structured mirror-use exercises to help shift attention from detail-focused to whole-picture self-viewing.

• Gradually reduce mirror checking and camouflaging behaviors as part of a structured plan
• Limit reassurance-seeking about appearance from family, friends, or social media
• Avoid pursuing further cosmetic or dermatological procedures without first addressing the underlying preoccupation through psychiatric treatment
• Reduce time spent on appearance-focused social media, especially photo comparison or editing apps

BDD tends to be chronic without treatment and carries a notably elevated risk of severe depression and suicide, making timely treatment especially important. With SSRIs and specialized CBT, most people experience significant and lasting improvement in preoccupation, distress, and associated behaviors.

• Addressing excessive appearance-related teasing or bullying in childhood and adolescence promptly
• Building healthy body image and self-esteem independent of appearance
• Early psychiatric assessment when appearance concerns begin to consume significant time or affect daily functioning

Avoid providing repeated reassurance about the person's appearance, as this — though well-intentioned — reinforces the checking cycle in the same way it does in OCD. Discourage pursuit of further cosmetic procedures without psychiatric input first, and take any expression of hopelessness or suicidal thoughts seriously and seek help promptly given the elevated suicide risk associated with BDD.

1. American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, 5th Edition, Text Revision (DSM-5-TR).
2. National Institute for Health and Care Excellence (NICE). Obsessive-compulsive disorder and body dysmorphic disorder: treatment.