Necrotizing fasciitis risk factors

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Yamuna Kondapally, M.B.B.S[2]

Risk Factors

Common risk factors in the development of necrotizing fasciitis are:

Type 1	Type 2	Type 3	Type 4
• Alcoholism • Antecedent trauma • Carcinoma • Cardiopulmonay disease • Diabetes • Iatrogenic procedures • Immunosupression (e.g., HIV and corticosteroid use) • Intravenous drug abuse • Male gender • Peripheral vascular disease • Recent surgery • Smoking • Advanced age	• Alcoholism • Antecedent trauma • Carcinoma • Cardiopulmonay disease • Diabetes • Immunosupression (e.g., HIV and corticosteroid use) • Intravenous drug abuse • Male gender • Peripheral vascular disease • Recent surgery • Exposure to children with sore throat • HLA class II haplotype • Lack of specific anti-GAS antibodies • Varicella infection • Advanced age	• Raw oyster ingestion • Wound contamination with sea water • Immunosupression • Advanced age	• Immunosupression • Antecedent trauma • Burns • Advanced age