Why does ectopic pregnancy occur?

Many women who are preparing to become pregnant are particularly afraid that they will have an ectopic pregnancy. Ectopic pregnancy is not only dangerous, but also causes great harm to the body. In fact, as long as the basic factors for ectopic pregnancy are eliminated, there is generally no possibility of ectopic pregnancy. So what kind of people are prone to ectopic pregnancy? Chronic salpingitis, fertilized egg migration, pelvic inflammatory disease and other reasons will affect the fertilized egg reaching the correct position. This article introduces the details, let’s take a look.

1. Chronic salpingitis

Chronic salpingitis can cause adhesions in the fallopian tube mucosal folds, leading to stenosis of the tubal lumen, mucosal destruction, loss of epithelial cilia, adhesions around the fallopian tube, and distortion of the tube shape. The above conditions affect the normal operation and passage of the fertilized egg in the fallopian tube and are the main cause of tubal pregnancy.

2. Fertilized eggs travel abroad

After the fertilized egg is fertilized in one fallopian tube, it can swim along the fimbria to the opposite fallopian tube. Due to the prolonged time, the fetus has the ability to implant before entering the uterine cavity, forming an ectopic pregnancy.

3. Pelvic inflammatory disease or pelvic tumor

For women with pelvic inflammatory disease or pelvic tumors, the compression and traction of the tumor may cause the uterus or fallopian tube to move, change shape, and even cause structural abnormalities. These changes sometimes affect the normal arrival of the fertilized egg in the uterine cavity.

4. Hypoplasia or dysfunction of fallopian tubes

Abnormal fallopian tube development or function Abnormal fallopian tube development such as excessively long fallopian tubes, hypoplastic myometrium, absence of mucociliary tissue, double fallopian tubes, and extra fimbria can all be the cause of tubal pregnancy.

5. Fallopian tube surgery

Regardless of whether ligation, electrocoagulation or cuffing is used after tubal sterilization, if a fallopian tube fistula is formed or recanalization occurs, it may lead to tubal pregnancy. Recanalization or fallopian tubeplasty after tubal sterilization may also cause scarring that narrows the lumen and leads to poor patency, leading to disease.

6. Pelvic endometriosis

Tubal pregnancy caused by endometriosis is mainly due to mechanical factors. In addition, the ectopic endometrium in the pelvic cavity may have a chemotactic effect on the fertilized egg, prompting it to implant outside the uterine cavity.

7. Repeated abortion

Nowadays, young people have more and more open views on "sex". According to some research data, the more abortions a woman undergoes, the greater the chance of ectopic pregnancy.

8. History of ectopic pregnancy

If an ectopic pregnancy has occurred before, the chances of a woman becoming pregnant outside the uterus the next time will increase significantly. This is like an unavoidable vicious cycle, and once it begins, it will be an endless nightmare.

9. Improper contraceptive methods

If the hormones are out of balance, it will affect the delivery of the fertilized egg and cause fallopian tube pregnancy. Some women lack self-protection awareness and do not have long-term contraceptive measures. The abuse of contraceptives will increase the risk of ectopic pregnancy.

10. Bad living habits

Women who smoke and drink frequently are more likely to suffer from ectopic pregnancy. Because nicotine in tobacco can change the cilia movement of the fallopian tubes, excessive drinking can easily cause the lumen of women's fallopian tubes to narrow, resulting in poor ciliary movement function, which is not conducive to the fertilized egg to implant in the uterus.