Body Dysmorphic Disorder (BDD) can begin in early childhood or as late as the 40s. It usually starts during adolescence.
Many BDD symptoms appear similar in children and adolescents compared to adults. Like adults, children and adolescents have distressing, time-consuming preoccupations that can focus on any body area. As in adults, BDD in children and adolescents typically causes problems with day-to-day functioning. These problems can include poor grades, dropping out of school, withdrawing from family and friends, becoming housebound and even attempting suicide.
However, there seem to be some differences in BDD in youth compared to adults. BDD and some of its effects may be more severe in youth. For example, suicide attempts may be even more common in children/adolescents than in adults with BDD.