In the course of several ongoing studies, the authors have encountered
men and women who display a form of body dysmorphic disorder in which
they become pathologically preoccupied with their degree of musculari
ty. This condition, which the authors have tentatively termed ''muscle
dysmorphia, '' may cause severe subjective distress, impaired social
and occupational functioning, and abuse of anabolic steroids and other
substances. Epidemiologic data suggest that muscle dysmorphia, though
rarely recognized, may affect substantial numbers of Americans. The a
uthors summarize the features of muscle dysmorphia, present several ca
se examples, and offer proposed diagnostic criteria that may be useful
for subsequent research.