Body dysmorphic disorder (BDD)

What is body dysmorphic disorder?

In BDD, attention centres on something about the person’s appearance that feels wrong, ugly, asymmetrical or inadequate. It may be a particular part of the nose, the texture of the skin, the hairline, the teeth, the chest or the proportions of the body. Some people are concerned about several areas at once. Others have a more general sense that their face or body looks wrong without being able to isolate one detail.

Many people sometimes wish they looked different or feel insecure about their appearance. In BDD, the concern begins to shape everyday decisions. The person spends time checking, concealing, correcting, measuring or comparing, and plans for work, education, relationships and leisure may depend on how they feel about their appearance that day.

To the person, the flaw may look entirely real. When others say they cannot see it, their reassurance may therefore feel superficial or unconvincing. The concern is not always experienced as doubt. The thought may be: I know my skin looks ruined, or it is obvious that my face is crooked. This makes BDD particularly painful and can make it difficult to imagine that the problem lies in the preoccupation rather than the appearance.

BDD is classified among obsessive-compulsive and related disorders in both the World Health Organization’s ICD-11 and the American DSM-5-TR. Its relationship with OCD can be seen in repeated actions, narrowly focused attention and the brief relief that checking can bring. BDD also has its own patterns involving visual attention, self-image, shame and appearance, which need to be addressed in assessment and treatment.

When concerns about appearance begin to shape the day

A morning may begin with a quick look in the mirror and end with an hour of checking. The lighting is adjusted, the skin examined close up and the hair restyled. The person takes photographs from different angles or compares today’s face with an older photograph. When one detail looks acceptable, attention moves to another.

Checking is often intended to answer a concrete question: Do I look worse than yesterday? Can other people see it? Has the asymmetry become greater? The first answer may bring relief, but it rarely lasts. Different lighting, another angle or a glance from a stranger can make the judgement uncertain again, so the routine intended to settle the concern ends up keeping it going.

On other days, the person avoids the mirror altogether. They turn off their camera during a video meeting, delete photographs and avoid shop windows. Mirror avoidance and mirror checking may look like opposites, but they can serve the same purpose: avoiding the distress triggered by seeing one’s appearance. Some people alternate between the two depending on how able they feel to cope that day.

Camouflage may involve make-up, facial hair, hairstyle, clothing, posture or a particular position in a room. The person may always choose the same side of a table, hold a hand in front of the mouth or avoid direct light. These strategies can make it possible to complete an activity, but may also strengthen the experience that being seen without them would be dangerous or humiliating.

BDD can be hidden from other people. Someone may manage their work and appear well groomed even though the entire morning has been a struggle. Careful skincare or a strong interest in exercise may look voluntary from the outside, while the person experiences shame, spends a great deal of time on it and feels they have no choice.

What can BDD look like?

The focus on appearance can concern almost any part of the body. Common areas include the skin, hair, nose, eyes, eyebrows, teeth, jaw, chin, lips, chest, genitals and build. The focus may shift over time. When one area has been treated or temporarily feels less important, another may come to the foreground.

Common repeated actions and mental strategies include:

• examining appearance in mirrors, cameras, windows or reflective surfaces
• avoiding mirrors, photographs, video or particular lighting
• comparing oneself with people in daily life, photographs or social media
• measuring body parts, skin areas, the hairline or muscle size
• asking others whether something looks wrong and analysing their answers
• spending a long time on make-up, hair, clothing, shaving, skincare or positioning the body
• feeling the area with the fingers or checking it with the tongue
• reviewing photographs and memories to determine when a change began
• repeatedly seeking cosmetic, dermatological or dental assessments
• avoiding school, work, intimacy, exercise or social events

These actions are often attempts to reach a point at which the person feels their appearance is acceptable or that others will not notice the perceived flaw. The immediate goal may simply be to leave the house without feeling exposed.

When does concern about appearance become BDD?

A diagnosis is based on an overall clinical assessment. In BDD, the person is preoccupied with one or more flaws or defects in their appearance that other people cannot see or regard as slight. The pattern also includes repeated visible or mental actions such as mirror checking, comparison, grooming, reassurance seeking and mental checking.

The preoccupation must also cause substantial distress or affect daily life. This may appear as absence, lateness, conflict, financial expense, social withdrawal or difficulty with intimacy. Some people spend many hours on rituals, while others have organised their lives to avoid situations in which their appearance feels exposed. Time alone therefore does not tell the whole story.

The assessment covers both visible and hidden parts of the pattern. It usually includes areas of focus, checking, comparison, avoidance, camouflage, cosmetic treatments and the impact on daily life. It is also important to assess depression, social isolation, eating-disorder symptoms, use of performance-enhancing substances and the risk of self-harm or suicide.

Insight can vary

Here, insight describes how certain the person is about their judgement of appearance. Some people recognise that BDD is probably influencing their perception, even though the feeling remains strong. Others can accept that the concern might be exaggerated but consider this unlikely. With poor or absent insight, the flaw is experienced as an indisputable fact.

Insight may change. During calmer periods, a person may recognise the pattern but lose this distance when a photograph, comment or mirror triggers intense shame. Treatment can begin by examining what checking and avoidance do to the person’s life without requiring them first to accept that their judgement of appearance is wrong.

BDD can involve absent insight and very fixed beliefs about appearance. The wider pattern of symptoms therefore tells us more than a single statement about how certain the person feels.

Discussions about facial proportions can easily make appearance the central question. It is more helpful to examine whether the current pattern allows the person to live the life they want.

Muscle dysmorphia

Muscle dysmorphia is a form of BDD. The person experiences their body as too small, insufficiently muscular or not defined enough. This experience can be powerful even when the body is clearly muscular. The focus may concern overall size, body-fat percentage, symmetry or particular muscle groups.

Exercise and diet are often organised around appearance-related demands. Training sessions continue despite injury or illness, meals are planned rigidly, and social activities are declined if they disrupt the programme. The person may measure their body, weigh themselves, compare themselves with others or check muscle definition under particular lighting. A rest day can feel as though muscle has visibly been lost, even though the body does not change in that way from one day to the next.

An ordinary interest in strength training differs from muscle dysmorphia because it does not compromise health or restrict everyday life in the same way. Muscle dysmorphia occurs in people of all genders and is not limited to bodybuilders.

Anabolic steroids and other performance-enhancing substances may form part of the pattern. They carry particular physical and psychological risks that require medical assessment. Shame and fear that someone will ask them to cut back on training may cause their use to remain hidden.

BDD can resemble other conditions

Several conditions can resemble BDD and may also occur alongside it. The key distinction lies in what drives the preoccupation and the person’s responses.

Ordinary dissatisfaction with appearance. Insecurity and comparison are widespread. In BDD, the preoccupation becomes persistent and leads to repeated actions, substantial distress or restrictions on the person’s life.

Eating disorders. In an eating disorder, weight, body shape and eating are often central, while BDD may focus on any aspect of appearance. A person can have both conditions, and muscle dysmorphia may involve a rigid diet and exercise. The whole pattern therefore matters more than a single rule about which body part is the focus.

OCD. In OCD, the person may be preoccupied with symmetry, contamination, morality or risk. Appearance can also feature in obsessions. In BDD, persistent preoccupation with a perceived flaw in appearance is the clinical core. The two diagnoses can occur together, but BDD should not be reduced to appearance OCD.

Social anxiety. Both conditions may lead to fear of other people’s gaze and social avoidance. In BDD, the fear centres on others noticing or judging the perceived flaw. In social anxiety, the focus may be broader and involve blushing, saying the wrong thing or appearing inadequate. Overlap is common.

Depression. Depression may produce a very negative self-image and withdrawal. BDD has a more specific focus on appearance with checking, comparison or camouflage. Persistent BDD can also lead to depression as opportunities and relationships become restricted.

Psychosis. Poor insight in BDD can make the belief about appearance very fixed. Psychosis involves a broader pattern that may include hallucinations, other fixed beliefs not grounded in reality, disorganised thinking or speech and marked changes in the person’s grasp of reality. The degree of conviction about appearance does not determine the distinction on its own.

Gender dysphoria. Distress concerning sex characteristics is understood in relation to gender identity. A wish for gender-affirming treatment is not in itself an expression of body dysmorphic preoccupation, while BDD can occur in people of any gender identity.

Skin-picking disorder and trichotillomania. In BDD, skin picking or hair pulling may be used to change a perceived flaw in appearance. When these actions form recurring patterns in their own right, they are often driven more by sensory experiences or habit. The context and purpose are central to the distinction.

A visible difference or skin condition. A scar, skin condition or other visible difference can cause psychological distress without being BDD. A visible detail does not rule out BDD if the preoccupation and responses are clearly disproportionate to the difference. The assessment therefore includes the visible difference, the preoccupation and the responses.

Shame, secrecy and consequences for life

It can be difficult to talk about BDD. The person may fear that others will dismiss the concern as superficial or that, by looking more closely, they will discover the flaw. Some therefore seek help for depression, social anxiety or skin problems without mentioning how much of their attention is focused on appearance.

Shame may affect close relationships. Intimacy is avoided, the lights must be off, or a partner is not allowed to see particular parts of the body. A comment intended to be neutral may be replayed for days. At the same time, the person may come to rely heavily on a partner’s reassurance yet distrust it, assuming that love makes the answer less honest.

Education and work may be affected by lateness, absence and avoidance of meetings. Cameras and video calls create new opportunities for checking: the person’s own image is monitored throughout the conversation, and afterwards they mainly remember the angles that felt wrong. Social media can intensify comparison but does not by itself explain why BDD develops.

Cosmetic consultations, skincare products, dental work and exercise expenses may place a strain on finances. Some people undergo repeated procedures and then focus on small irregularities in the result or on a new area. A local treatment may bring satisfaction without changing the underlying pattern of judging and checking appearance.

BDD is associated with an increased risk of self-harm and suicide. Suicidal thoughts or plans, self-harm or a sudden marked deterioration in everyday functioning require prompt clinical assessment.

When the family becomes part of the checking

Family and friends often try to help by saying that nothing looks wrong. They take new photographs, assess a blemish, help with make-up or change plans when the person does not feel ready. When they repeatedly answer the same questions about appearance, their efforts to help become part of the checking.

Reassurance seeking may be direct: Does my nose look crooked? It can also be indirect: Who do you think I look like? or Why did she look at me like that? A detailed answer often leads to more questions, while a brief answer may seem suspicious. The family member is drawn into a task that cannot be completed.

Family and friends can acknowledge the intense shame and distress without carrying out another assessment of appearance. For example: I can see that this is very difficult right now. I want to be with you, but I am not going to assess your face again.

Changes to these responses are agreed and introduced gradually so that they do not feel like sudden rejection. During treatment, it can be useful to distinguish ordinary conversation from answers that maintain checking. The aim is to restore space in the relationship for life beyond BDD.

Treatment for BDD

BDD-specific cognitive behavioural therapy has been developed for the condition’s particular pattern and can be adapted to the person’s age, insight and the extent to which the difficulties affect daily life. Treatment examines how visual attention, interpretations, checking and avoidance keep appearance at the centre of everyday life. The aim is not to convince the person that they are beautiful.

Treatment begins by mapping when the preoccupation arises, which areas it concerns and what happens next. Mirror checking, cameras, comparison, grooming, mental review and avoidance are considered alongside rules that can be difficult to notice: only going outside on cloudy days, always wearing make-up or standing on a particular side of other people.

Behavioural experiments are used to test predictions. If the person expects everyone to stare, an exercise may involve taking part in a brief activity without the usual camouflage and noticing what happens. The person practises staying in the activity without constant checking or treating one interpretation of other people’s reactions as certain.

Exposure and response prevention may be included. The person gradually approaches situations they have avoided and reduces the actions used to obtain certainty. This could mean leaving home after one ordinary look in the mirror, allowing a photograph to be taken without checking it afterwards or taking part in a conversation without hiding a particular side. The exercises are meant to reduce checking, not become new tests of appearance.

Mirror work can help the person view themselves in a more balanced and neutral way rather than zooming in on small details. Attention training can move focus from how they appear from the outside to the conversation or activity in which they are taking part. Cognitive work examines assumptions about worth, rejection and the necessity of looking a particular way.

For muscle dysmorphia, treatment also considers exercise, diet, recovery and any use of performance-enhancing substances. The work helps distinguish healthy movement from rules driven by BDD. Co-occurring skin picking or hair pulling may require methods designed for body-focused repetitive behaviour.

Medication may be relevant. Guidelines point particularly to selective serotonin reuptake inhibitors (SSRIs), a group of antidepressants prescribed and monitored by a doctor. The choice depends on factors such as symptom severity, co-occurring depression or anxiety, previous treatment and the person’s preferences.

BDD may intensify during stress, conflict, skin changes, photographs or other bodily changes. Treatment therefore includes recognising the early signs of increased checking and returning to the approaches practised in treatment before life is once again organised around appearance.

Cosmetic procedures rarely resolve the BDD pattern

When the problem seems to lie in a particular body part, correcting it can feel like the obvious solution. Many people therefore first seek help from a dermatologist, dentist, hairdresser or cosmetic surgeon. Some are satisfied with a local improvement, but in BDD the preoccupation often continues. Doubt may shift to the result, a small asymmetry or another area.

Before another procedure is relied on as the solution to psychological distress, the wider BDD pattern needs to be assessed. If the hope is that life, self-worth and relationships will fall into place as soon as the detail is corrected, the risk of disappointment is particularly high.

A BDD assessment explores what sits behind the wish for treatment. It looks at how long certainty lasts after an opinion, what followed previous procedures and which parts of life have been put on hold. The answers reveal more about the need for BDD treatment than another analysis of an image.

When is it relevant to seek help?

It is worth seeking help when concerns about appearance take up substantial time, lead to repeated checking or restrict school, work, relationships, finances, diet, exercise or health. Secrecy and adaptation can conceal how limited daily life has become.

The first appointment is also a place to describe cosmetic treatments, use of performance-enhancing substances, self-harm, suicidal thoughts and actions that otherwise feel shameful. This information helps clarify both the BDD pattern and other possible explanations.