随着现代养牛业的发展,奶牛饲养密度大大增加,但是对疫病的抵抗力却在不断下降。奶牛子宫内膜炎是奶牛常见的生殖系统疾病,病原有多种致病菌,主要威胁奶牛发情、配种和受胎。本文分析了奶牛子宫内膜炎的病因和临床症状,指出诊断方法和防治措施,以期缓解奶牛子宫内膜炎对奶牛自身和养殖场（户）造成的威胁,为保障奶牛生殖系统健康提供理论依据。

With the development of modern cattle breeding,the breeding density of dairy cows has increased greatly, but the resistance to pathogenic bacteria and diseases has been declining.Cow endometritis is a common reproductive system disease in dairy cows.The pathogen comes from a variety of pathogenic bacteria,which mainly threaten estrus, breeding and conception of cows.This article analyzes the etiology and clinical symptoms of dairy cow endometritis, and points out the diagnosis methods and prevention measures.With a view to alleviating the threat of dairy cow endometritis to dairy cows and farmers,and to provide a theoretical basis for ensuring the health of the reproductive system of dairy cows.