尿路感染可根据有无原发病而分为单纯性尿路感染和复合性尿路感染.前者较易治愈,所以不必过多考虑药物的灵活运用。后者的治愈率随着新药的不断出现而逐渐提高. 应根据致病菌,药物敏感性,副作用和感染状态等因素来选择各代头孢菌素. 头孢菌素是由头孢子菌和放线菌的代谢产物制成 Urinary tract infection can be divided into simple urinary tract infection and compound urinary tract infection according to the presence or absence of the primary disease.The former is easier to cure, so do not have to consider the flexible use of drugs. The cure rate of the latter gradually increased with the emergence of new drugs should be based on pathogens, drug sensitivity, side effects and status of infection and other factors to choose the generation of cephalosporins cephalosporins cephalosporins and actinomycosis Bacterial metabolites