Necrotizing fasciitis is an infection caused by bacteria. It can destroy skin, fat, and the tissue covering the muscles within a very short time. The disease sometimes is called flesh-eating bacteria. When it occurs on the genitals, it is called Fournier gangrene.
Necrotizing fasciitis is very rare but serious. About 1 out of 4 people who get this infection die from it. Many people who get necrotizing fasciitis are in good health before they get the infection.
Your risk of getting this infection is higher if you:
Have a weak immune system.
Have chronic health problems such as diabetes , cancer, or liver or kidney disease.
Have cuts in your skin, including surgical wounds.
Recently had chickenpox or other viral infections that cause a rash.
Use steroid medicines, which can lower the body's resistance to infection.