Table VI.

Diagnostic Criteria for Hidradenitis Suppurativa and Hurley Staging System

Hidradenitis Suppurativa Diagnostic Criteria*

1. Is there more than a single inflamed lesion?

2. Is the course chronic with new and recurrent lesions?

3. Are the lesions bilateral?

4. Are the lesions located primarily in the milk line?

Hurley Staging

I. Abscess formation (single or multiple) without sinus tracts and cicatrization

II. One or more widely separated recurrent abscesses with tract formation and scars

III. Multiple interconnected tracts and abscesses throughout an entire area

^*Patients had to meet all 4 criteria for study inclusion, except in cases of atypical locations (e.g. perianal or perineal, buttock or gluteal cleft, neck or ear, scrotum) in which lesions are not primarily located in the milk line.