BDD is Fairly Common How Common Is BDD? Studies Have Found That BDD Occurs in Approximately . . . . 1%–2.4% of adults in the general population. 2.2%–13% of students. 13%–16% of patients who are psychiatrically hospitalized. 14%–42% of outpatients with atypical major depression. 11%–12% of outpatients with social phobia. 3%–37% (average of 17%) of […]