糖尿病足合并感染可以分为不威胁肢体的感染和威胁肢体的以及全身的感染,后者可以无严重的全身毒血症的表现。引起感染的最常见的细菌是革兰氏阳性细菌,常见的为混合细菌的感染。在感染的处理上,要评估感染情况和代谢状态,根据药物敏感试验结果和感染的程度选用抗生素,决定随访时间和次数以及是否需要住院治疗。本文还讨论了感染患者的住院标准、处理原则以及选用抗生素的原则。 Diabetic foot co-infection can be divided into non-threat of limb infection and threat of limbs and systemic infections, the latter can be no serious systemic toxemia performance. The most common bacteria that cause infections are Gram-positive bacteria, most commonly mixed bacterial infections. In the treatment of infection, to assess the infection and metabolic status, according to drug susceptibility test results and the extent of infection selection of antibiotics, decide the time and frequency of follow-up and the need for hospitalization. This article also discusses the hospitalized patients infected criteria, principles of treatment and the principle of selection of antibiotics.