Body dysmorphic disorder (BDD) is a mental illness. People who have this illness constantly worry about the way they look. They may believe an inconspicuous or non-existent physical attribute is a serious defect. They respond to this by performing repetitive acts such as mirror checking or comparing their appearance with others.
The severity of BDD varies. For example, some people know their feelings aren’t rational or justified, while others are almost delusional in their conviction.
BDD causes severe emotional distress. It is not just vanity and is not something a person can just ‘forget about’ or ‘get over’. The preoccupation can be so extreme that the affected person has trouble functioning at work, school or in social situations. Any part of the body can be targeted.