Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.

Definition of Necrotizing fasciitis

Medically reviewed by Min Clinic Staff | Updated: January 2026

Necrotizing fasciitis: Severe bacterial infection of the fascia, the tissues that line and separate muscles, that causes extensive tissue death. Necrotizing fasciitis can be caused by several different types of bacteria, particularly by virulent strains of streptococcus and staphylococcus. The rapid spread and destruction of tissue occurs because of substances produced by the bacteria. Treatment involves the use of high-dose antibiotics and surgical removal of dead and infected tissue to help control the infection. Also known as flesh-eating bacteria.