What are the causes of ectopic pregnancy?

Ectopic pregnancy refers to the fertilized egg not reaching the uterus during the migration process, but staying somewhere else, leading to pregnancy. What are the causes of ectopic pregnancy? Experts say that there are many reasons for ectopic pregnancy. Let's take a closer look.

1. Migratory fertilized eggs are one of the causes of ectopic pregnancy: the egg is fertilized in one fallopian tube, and the fertilized egg enters the opposite fallopian tube through the uterine cavity or abdominal cavity, which is called fertilized egg migration. If the migration time is too long, the fertilized egg will grow larger and implant in the opposite fallopian tube, forming a tubal pregnancy.

2. Tubal surgery: Women who have had tubal pregnancy are more likely to have another tubal pregnancy. If a tubal fistula is formed or recanalized after tubal sterilization, tubal pregnancy may occur.

3. Tubal inflammation: It can be divided into tubal mucositis and perisalpingitis, both of which are common causes of tubal pregnancy. Tuberculous salpingitis is a serious disease, which often causes infertility after recovery. Occasionally, pregnancy occurs, and about 1/3 of the cases are tubal pregnancies. Nodular isthmic salpingitis is a special type of salpingitis. The lesion is caused by the extension of the tubal mucosal epithelium into the isthmus muscle wall in a diverticular manner, and the muscle wall undergoes nodular hyperplasia, which causes the proximal muscle layer of the fallopian tube to thicken, affecting its peristaltic function, resulting in obstruction of the movement of the fertilized egg, and making tubal pregnancy more likely to occur.

4. There are other reasons for ectopic pregnancy: the compression of the fallopian tube by surrounding tumors such as uterine fibroids or ovarian tumors sometimes affects the patency of the fallopian tube lumen, which hinders the movement of the fertilized egg. Endometriosis can increase the possibility of the fertilized egg implanting in the fallopian tube.

The above are the causes of ectopic pregnancy introduced by experts. In addition, ectopic pregnancy can also be caused by dysplasia or abnormal function of the fallopian tube. If you have other questions about the causes of ectopic pregnancy, please consult online experts. The editor wishes you good health.

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