The occurrence of XueYingZhi points out, ectopic pregnancy has a lot of kinds of incentives: first, ectopic pregnancy high-risk and reproductivetractinfection predominantly most close relations.
薛颖芝指出，宫外孕的发生有很多种诱因：首先，宫外孕高发与生殖道感染高发的关系最为密切。
2
Monitoring cows frequently postpartum and early treatment of infection will prevent long-term damage to the reproductivetract.
产后经常观察奶牛和感染的早期治疗将预防对奶牛的生殖道产生长期的损害。
3
Diagnosis and medical treatment are difficult for them because of their anxiety and fearing for reproductivetractinfection, then it results in recurrence of the disease and severe complication.