Cellulitis Grades

The terms cellulitis and erysipelas are often used interchangeably and clinical differentiation may be difficult. In both conditions, patients may be systemically well or unwell.

Cellulitis severity is graded I-IV (Table 1).

Table 1: Cellulitis severity grades



Class I

No systemic toxicity and no uncontrolled comorbidity

Class II

Systemically ill OR comorbidity complicating infection

Class III

Signs of marked systemic illness (confusion, tachycardia, hypotension) or severe comorbidity

Class IV

Sepsis syndrome or life-threatening infection such as necrotising fasciitis