Necrotizing fasciitis is a rare, rapidly progressing soft tissue infection, characterised by extensive necrosis of subcutaneous fat and fascia with relative sparing of skin and underlying muscle. It is usually caused by toxin producing virulent bacteria. Although it can occur in otherwise healthy patients, the disease is usually seen in conjunction with immune deficiency disorders, intravenous drug abuse, peripheral vascular disease and diabetes. Necrotizing fasciitis is more frequent in abdominal wall, perineum and extremities. Involvement of the head and neck structures and especially the scalp is rare. We treated a diabetic and chronic renal failure patient with necrotizing fasciitis of the scalp without any complication.