Body dysmorphic disorder (BDD), occasionally still called dysmorphophobia, is a mental disorder characterized by the obsessive idea that some aspect of ones own body part or appearance is severely flawed and therefore warrants exceptional measures to hide or fix it. In BDDs delusional variant, the flaw is imagined. If the flaw is actual, its importance is severely exaggerated. Either way, thoughts about it are pervasive and intrusive, and may occupy several hours a day, causing severe distress and impairing ones otherwise normal activities. BDD is classified as a somatoform disorder, and the DSM-5 categorizes BDD in the obsessive–compulsive spectrum, and distinguishes it from anorexia nervosa. BDD is estimated to affect from 0.7% to 2.4% of the population. It usually starts during adolescence and affects both men and women. The BDD subtype muscle dysmorphia, perceiving the body as too small, affects mostly males. Besides thinking about it, one repetitively checks and compares the perceived flaw, and can adopt unusual routines to avoid social contact that exposes it. Fearing the stigma of vanity, one usually hides the preoccupation. Commonly unsuspected even by psychiatrists, BDD has been underdiagnosed. Severely impairing quality of life via educational and occupational dysfunction and social isolation, BDD has high rates of suicidal thoughts and attempts at suicide. History
In 1886, Enrico Morselli reported a disorder that he termed dysmorphophobia, which described the disorder as a feeling of being ugly even though there does not appear to be anything wrong with the persons appearance.
Although delusional in about one of three cases, the appearance concern is usually non-delusional, an overvalued idea.The bodily area of focus can be nearly any and is commonly face, hair, and skin. In addition, multiple areas can be focused on simultaneously. A subtype of body dysmorphic disorder is bigorexia (anorexia reverse or muscle dysphoria). In muscular dysphoria, patients perceive their body as excessively thin despite being muscular and trained. Many seek dermatological treatment or cosmetic surgery, which typically does not resolve the distress. On the other hand, attempts at self-treatment, as by skin picking, can create lesions where none previously existed.BDD is an obsessive-compulsive disorder but involves more depression and social avoidance despite DOC. BDD often associates with social anxiety disorder. Some experience delusions that others are covertly pointing out their flaws. Cognitive testing and neuroimaging suggest both a bias toward detailed visual analysis and a tendency toward emotional hyper-arousal.Most generally, one experiencing BDD ruminates over the perceived bodily defect several hours daily or longer, uses either social avoidance or camouflaging with cosmetics or apparel, repetitively checks the appearance, compares it to that of other people, and might often seek verbal reassurances. One might sometimes avoid mirrors, repetitively change outfits, groom excessively, or restrict eating.BDDs severity can wax and wane, and flareups tend to yield absences from school, work, or socializing, sometimes leading to protracted social isolation, with some becoming housebound for extended periods. Social impairment is usually greatest, sometimes approaching avoidance of all social activities. Poor concentration and motivation impair academic and occupational performance.