Pathogenic bacterium and the pathognomonic feature of diabetic foot infection

Abstract

Diabetic foot is a chronic complication of diabetes mellitus ,40%-80% of diabetic foot ulcers become infected. Gram-positive aerobic bacteria are the commonest micro-organism isolated, followed by Gram-negative aerobic bacteria ,anaerobes and fungi. Staphylococcus aureus is found most frequently. Pathognomonic features of diabetic foot infection are polypathogens, multi-drug-resistant pathogens, microorganism infection,the type and characters of pathogenic bacterium varied with the ulcer grade and healing stage. The age of patients with diabetic foot infection is older, the wound healing time is longer, combined therapy should be used to treat diabetic foot. It is important to strengthen the earlier precaution and treatment to the diabetic foot infection. Key words: Diabetic foot; Infection; Pathogen; Drug resistance