由于造成肺结核复治的原因很复杂 ,复治肺结核一直是肺结核化疗的难点。其化疗方案正确与否不但影响化疗的转归 ,也影响卫生资源的合理利用和增加医源性疾病的发生率等诸多问题。显然 ,规范复治肺结核的化疗前必须先规范复治肺结核的定义。众所周知 ,国内外对肺结核的化疗分为 Due to the complex causes of retreatment of tuberculosis, retreatment of tuberculosis has always been a difficult point of tuberculosis chemotherapy. The chemotherapy program is correct or not will not only affect the outcome of chemotherapy, but also affect the rational use of health resources and increase the incidence of iatrogenic diseases and many other issues. Obviously, it is necessary to regulate the definition of retreatment of tuberculosis before regulating chemotherapy for re-treatment of tuberculosis. As we all know, tuberculosis chemotherapy at home and abroad is divided into