Patient's perspective: an important issue not to be overlooked in assessing acne severity.

Acne has significant negative effects on an individual's psychosocial functions. There is not always a correlation between the severity of acne and its impact on quality of life. Our objective was to evaluate the correlation between quality of life scales and both the physician's and patient's assessments of acne severity and to find out which quality of life scale is more sensitive to changes in acne severity by using generic and acne specific scales.