Introduction: We carried out a revision of Necrotizing Fasciitis diagnosed in our Hospital from January 2000 to July 2008. Necrotizing Fasciitis is an infection of soft tissues, caused in most of cases by Streptococcus pyogenes. It is a dangerous infection, because it progresses quickly, and it can lead to death due to systemic toxicity.

Materials and Methods: The study includes 18 patients afected by Necrotizing fasciitis treated in our Hospital from January 2000 until July 2008. In order to identify risk factors and clinical emergency signs, clinical detailed information was obtained for each patient.

Results: In 70% of the cases, Streptococcus pyogenes was found as the main germ involved in Necrotizing Fasciitis. In inicial stages, the patients complained of pain, heat, swelling, reddening and crepitation of the affected subcutaneous tissues. In advanced stages, patients went in a state of neurogenic shock. Specific antibiotical therapy was necessary in all cases. Surgical treatment was performed in 80 % of the cases, consisting of fascial aperture and debridement of devitalized tissues. In spite of the intensive medical and surgical treatments, 10% of the cases died.

Conclusion: We consider the suspicion and knowledge of Necrotizing fasciitis is crucial in order to diagnose early and properly this infection disease. Then we can be able to establish a precocious and suitable treatment which can avoid the potentially fatal outcome.