How do you get an ectopic pregnancy?

Ectopic pregnancy refers to the embryo planted outside the uterus development, belongs to a kind of ectopic pregnancy, the most common is tubal pregnancy. The reason is more common in fallopian tube inflammation, will lead to tubal stiffness, cilia destruction, there are obstacles to the transport of fertilized eggs, in the formation of fertilized eggs stage, due to tubal lesions, resulting in tubal pregnancy.