What Is Body Dysmorphic Disorder (BDD)?
Body Dysmorphic Disorder (BDD) is a mental health condition that causes individuals to develop a distorted view of their physical appearance. This disorder can significantly disrupt daily routines, self-esteem, and overall happiness. While it’s normal to notice things you don’t like about your appearance, most people are able to overlook minor imperfections. However, for those with BDD, these perceived flaws—whether real or imagined—become the focus of obsessive thoughts for hours each day, interfering with personal, academic, and professional life.
Who Is Affected by Body Dysmorphic Disorder?
BDD affects approximately 1 in 50 people in the United States, making it a fairly common but often overlooked mental health issue. The condition typically begins during adolescence or the teenage years, making early detection in children and teens crucial. BDD affects men and women at nearly equal rates, with 2.5% of males and 2.2% of females estimated to suffer from the disorder. Individuals with BDD often obsess over perceived flaws that are unnoticeable or insignificant to others.
Common Symptoms of Body Dysmorphic Disorder
People with BDD often fixate on specific physical features, leading to compulsive behaviors like mirror checking, excessive grooming, or seeking reassurance. Some of the most commonly obsessed-over body areas include:
- The face (especially the nose)
- Body weight or fat distribution
- Muscle tone and physical build
- Hair (including thinning, bald spots, or body hair)
- Skin issues such as acne, wrinkles, or uneven tone
- Breasts in women
- Genitalia in both men and women
What Contributes to Body Dysmorphic Disorder?
While the exact cause of BDD is not fully understood, research points to a combination of genetic, psychological, and environmental factors. The disorder often appears during the teen or early adult years and may involve abnormal brain activity in regions responsible for emotional regulation and impulse control. A family history of BDD significantly increases the risk, suggesting a strong hereditary component.
Dangers of Untreated Body Dysmorphic Disorder
When BDD is left unaddressed, it can lead to serious emotional and behavioral consequences. These may include:
- Clinical depression
- Substance abuse or dependency
- Inability to achieve full potential in work or school
- Suicidal thoughts or behaviors

- Low self-confidence and poor body image
- Declining academic or professional performance
BDD and Brain Function: How Body Dysmorphic Disorder Affects the Brain
Like many mental health conditions, Body Dysmorphic Disorder (BDD) is associated with abnormal brain activity. It is not just a psychological issue—it is a brain-based disorder. Individuals with BDD often experience co-occurring mental health issues such as obsessive-compulsive disorder (OCD), anxiety, and depression. Advanced brain imaging, including SPECT scans, has revealed unusual patterns of blood flow in specific areas of the brain in people with these conditions. Similar abnormalities may also be present in those with BDD.
Abnormal Brain Activity in BDD
SPECT brain imaging has revealed that people with OCD, anxiety, and depression often exhibit irregular blood flow in key brain regions—patterns that are also frequently seen in patients with Body Dysmorphic Disorder. These findings support the neurological basis of BDD and emphasize the importance of brain-focused evaluations.
Key Brain Regions Involved in BDD
Understanding the neurological underpinnings of BDD can lead to more precise diagnosis and treatment. By identifying these abnormal brain patterns through tools like SPECT imaging, clinicians can offer more effective, personalized care for those suffering from this challenging condition.
The ACG plays a crucial role in attention shifting and cognitive flexibility. When this area becomes overactive, individuals may find themselves stuck in repetitive thoughts or behaviors—a pattern commonly seen in OCD-like symptoms, which often occur alongside BDD.
This brain region is responsible for regulating anxiety levels and helps in the formation of behavioral habits. Increased activity in the basal ganglia is typically linked to excessive anxiety, fear, and tension, all of which are common in those struggling with BDD.
The limbic system sets the emotional tone and mood. When overactive, it’s often connected to negative thought patterns and depressive symptoms, both of which frequently co-exist with Body Dysmorphic Disorder.