Background Although emotional stress has long been suspected to exacerbate acne
vulgaris, previous reports addressing its influence on acne severity have been mainly
anecdotal. Objectives To elucidate the possible relationship between stress and acne
exacerbation by evaluating changes in acne severity during nonexamination and
examination periods and to assess the possible relationship of these changes in severity
with perceived examination stress by using previously validated scales measuring acne …