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. 2015 Aug 12;32(4):296–301. doi: 10.5114/pdia.2014.44012

Table 3.

Hurley's classification

Stage Description of skin changes
I Abscesses single or multiple, no fistulas and scars
II Chronic abscesses with fistulas and scars, single or multiple
III Disseminated changes in several location with abscesses, bridge-type scars and fistulas