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目的：对急慢性支气管炎患者咽部微生态学进行研究。方法：选择６１例患者咽部菌群进行定性、定量、定位测定。结果：需氧菌细菌群密度（ｌｇ１０ｎ±ｓ）为：急性支气管炎组４．９６９０±０．９９２５，慢性支气管炎组５．３５８３±０．９０４６；厌氧菌细菌群密度（ｌｇ１０ｎ±ｓ）急性支气管炎组为５．６７５９±０．９０４６，慢性支气管炎组５．９６６７±０．６２７２。需氧菌细菌群密度急慢性支气管炎组与正常对照组比较无显著性差异（Ｐ＞０．０５）；厌氧菌细菌群密度急支组与正常对照组比较无显著性差异（Ｐ＞０．０５），但慢性支气管炎与正常对照组比较有极显著性差异（Ｐ＜０．０１）。结论：慢性支气管炎咽部微生态失衡，尤其表现在厌氧菌群失衡。
Objective: To study the pharyngeal microecology in patients with acute and chronic bronchitis. Methods: Throat flora of 61 patients were selected for qualitative, quantitative and localization determination. Results: The bacterial population density of aerobic bacteria (lg10n ± s) was 4.9690 ± 0.9925 in acute bronchitis group and 5.3583 ± 0.9046 in chronic bronchitis group. The bacterial population density of anaerobic bacteria (lg10n ± s) 5.6759 ± 0.9046 in acute bronchitis group and 5.9667 ± 0.6272 in chronic bronchitis group. There was no significant difference between aerobic bacterial flora density of acute and chronic bronchitis group and normal control group (P> 0.05). There was no significant difference between the anaerobic bacterial density group and normal control group (P> 0) .05), but there was a significant difference between chronic bronchitis and control group (P <0.01). Conclusion: Microbiological imbalance in pharynx of chronic bronchitis, especially in the anaerobic flora imbalance.