OBJECTIVE To analyze the changes in clinical behaviors in the recent 10 years among patients with diabetes combined infection,including incidence of diabetic′s concurrent infections, the infective sites,the pathogen spectrum,the danger of infections and so on,we could do better in preventing and curing the diabetic′s concurrent infections.METHODS Using retrospective methods,the diabetic patients with concurrent infection were divided into two groups,712 patients in 1995-1999 as the first group,986 patients in 2000-2005 as the second group,were respectively calculated and compared their average age,sex distribution,the average course of diseases,the fasting blood sugar,glycosylated hemoglobin,the incidence of infection,and the distribution in body systems.RESULTS The diabetic patients′ average course in the second group(10.82?9.83 years) prolonged a little than the first(P