1, tubal dysplasia or deformity of the women

 Tubal muscular dysplasia, endometrial lesions such as a lack of cilia, so that the function of tubal transport Yunluan decreased. Tubal malformation lesions are not easy to make a fertilized egg successfully reach the uterine cavity.

 2, pelvic tumor in women, there

 As the tumor extrusion and traction, so that position of the uterus or fallopian tubes move, structural abnormalities, which will affect the normal to intrauterine Yunluan.

 3, tubal ligation for women and then pass

 Recanalization, whether natural or an operation and then pass, fallopian tubes are not as smooth, and then pass at a rather narrow, Yunluan easily have been prevented at home to stay in the narrow.

 Fourth, women who had a history of ectopic pregnancy

 Fifth, the women suffering from chronic salpingitis

 Under normal circumstances, the swing and the fallopian tubes through the ciliary muscle of the peristaltic tube to a fertilized egg into the uterine cavity transmission. Women with chronic salpingitis, due to inflammation and disease, making it difficult Yunluan reach the uterine cavity.

 6, suffering from endometriosis in women

 When Yunluan contact with the ectopic endometrium, the syncytial trophoblast cells from the cells out of cell differentiation, and secretion of proteolytic enzymes dissolve mucous membrane and erode the ectopic membrane to form a gap, so that one implant Yunluan development, and thus resulting in interstitial tubal ectopic pregnancy occurs.

 Therefore, women before pregnancy should be a comprehensive pre-pregnancy examination, prompt treatment of various diseases, to a healthy body to meet the important mission of pregnancy.