The Leeds revised acne grading system

A simple, reproducible and rapid means of assessing a patients acne is esse ntial for the GP, dermatologist and clinical trialist. In this article a co lour photographic acne grading scheme for the face and trunk (back and ches t) is presented. A series of colour photographs of facial and truncal acne were examined and ranked in order of severity, the criteria for severity in cluded extent of inflammation, range and size of inflamed lesions and assoc iated erythma, This produced 12 colour pictorial grades of facial acne and 8 grades for the back and 8 grades for the chest. Also a basis for grading non-inflamed acne is introduced.