Although body dissatisfaction has been found in boys as young as age six,<unk> 's onset is estimated at usually between ages 18 and 20. According to DSM-5,<unk>  is indicated by the diagnostic criteria for body<unk>  disorder via "the idea that his or her body is too small or insufficiently muscular", and this specifier holds even if the individual is preoccupied with other body areas, too, as is often the case. Further clinical features identified include excessive conduct of efforts to increase muscularity, activities such as dietary restriction, over-exercise, and injection of growth-enhancing drugs. Persons experiencing<unk>  generally spend over three hours daily pondering increased muscularity, and may feel unable to limit weightlifting. As in anorexia nervosa, the reverse quest in<unk>  can be insatiable. Those suffering from the disorder closely monitor their body and may wear multiple clothing layers to make it appear larger.<unk>  involves severe distress at having one's body viewed by others. Occupational and social functioning are impaired, and dietary regimes may interfere with these. Patients often avoid activities, people, and places that threaten to reveal their perceived deficiency of size or muscularity. Roughly half of patients have poor or no insight that these perceptions are unrealistic. Patient histories reveal elevated rates of diagnoses of other mental disorders, including eating disorders, mood disorders, anxiety disorders, and substance use disorder, as well as elevated rates of suicide attempts.
Muscle dysmorphia
Macroglossia
Lipoatrophy
Macrodontia 
Hypergraphia
Clitoromegaly
Trichomegaly
Hemifacial hypertrophy