Objective To investigate differentially expressed genes related to inflammation in endometrial cells induced by Lipopolysaccharide(LPS). Methods Normal endometrium in the proliferative phase of specimen from 3 cases for the experiment was collected. The LPS group were treated with 50 μg/ml LPS. Total RNA was extracted using Trizol reagent from cells. RNA quality was assessed by determining the OD260/280 ratio by agarose gel electrophoresis, the chip was scanned by laser scanner. The acquired was analyzed. Results A total of differentially expressed genes were found, these genes were relative to many aspects. Among them, the expression of genes involved in inflammation were up-regulated by LPS, such as overexpression of IL-1β, 8, etc. Conclusion The results indicates that inflammation-related genes may be one of the mechanisms of abnormal uterine bleeding by LPS-induced. Objective To investigate differentially expressed genes related to inflammation in endometrial cells induced by Lipopolysaccharide (LPS). Methods Normal endometrium in the proliferative phase of specimen from 3 cases for the experiment was collected. The LPS group were treated with 50 μg / ml LPS. Total RNA was extracted using Trizol reagent from cells. RNA quality was assessed by determining the OD260 / 280 ratio by agarose gel electrophoresis, the chip was scanned by laser scanner. The acquired was analyzed. Results A total of differentially expressed genes were found, these genes were relative to many aspects. Among them, the expression of genes involved in inflammation were up-regulated by LPS, such as overexpression of IL-1β, 8, etc. Conclusion The results indicates that inflammation-related genes may be one of the mechanisms of abnormal uterine bleeding by LPS-induced.