[目的]对肺外结核及时作出准确诊断,为肺外结核的控制提供可靠依据。[方法]用蒸馏水低滲溶液稀释蛋白浓度溶解各种血细胞,降低比重离心浓集结核杆菌。[结果]对302份样品涂片镜检阳性率43.04%,这就大大提高肺外结核的检出结果。[结论]对样品的采集特殊处理,在显微镜上多视野反复查找,会极大提高肺外结核病人的诊断准确性,为临床治疗提供依据。 [Objective] To make an accurate diagnosis of extrapulmonary tuberculosis in time and provide a reliable basis for the control of extrapulmonary tuberculosis. [Method] With distilled water hypotonic solution diluted protein concentration to dissolve various blood cells, reduce the proportion of centrifuged Mycobacterium tuberculosis. [Result] The positive rate of smear examination on 302 samples was 43.04%, which greatly enhanced the detection results of extrapulmonary tuberculosis. [Conclusion] The special treatment of sample collection and multi-field search on microscope repeatedly will greatly improve the diagnostic accuracy of pulmonary tuberculosis patients and provide the basis for clinical treatment.