What are the main causes of ectopic pregnancy?

Ectopic pregnancy is a more critical ectopic pregnancy. In other words, the fetus is not implanted in the uterus. Its occurrence is very dangerous for both the pregnant woman herself and the fetus in her abdomen. Therefore, we must actively understand the cause of the disease and do a good job of daily prevention. So, what are the causes of ectopic pregnancy?

1. Inflammation of the fallopian tube: It can be divided into tubal mucositis and perisalpingitis, both of which are common causes of tubal pregnancy. Severe tubal mucositis can cause complete obstruction of the lumen and lead to infertility, while mild cases can cause adhesion of the tubal mucosa and cilia defects, which affect the movement of the fertilized egg and cause it to implant there. Salpingitis caused by gonorrhea and Chlamydia trachomatis often involves the mucosa, while infection after abortion or delivery often causes perisalpingitis.

2. Fallopian tube surgery: If the fallopian tube is recanalized or fistula forms after tubal sterilization, it may lead to tubal pregnancy, especially laparoscopic electrocoagulation tubal sterilization and silicone ring surgery. If a woman has undergone tubal adhesion separation surgery or fallopian tube plasty, such as fallopian tube anastomosis and fallopian tube opening surgery due to infertility, the incidence of tubal pregnancy again is 10% to 20%.

3. Hypoplasia or dysfunction of fallopian tubes: Hypoplasia of fallopian tubes is often manifested by excessively long fallopian tubes, poor development of the muscular layer, and lack of mucociliary cells. Other causes of tubal pregnancy include double fallopian tubes, diverticula, or parafimbria. Abnormal secretion of estrogen and progesterone may affect the normal functioning of the fertilized egg. In addition, mental factors may also cause spasms and abnormal peristalsis of the fallopian tubes, interfering with the transport of the fertilized egg.

4. Migratory ovum: The ovum is fertilized in one fallopian tube, and the fertilized ovum enters the opposite fallopian tube through the uterine cavity or abdominal cavity, which is called migratory ovum. If the migration time is too long, the fertilized ovum will grow and implant in the opposite fallopian tube to form a tubal pregnancy.

5. Assisted reproductive technology: From the earliest artificial insemination to the current use of ovulation-inducing drugs, as well as in vitro fertilization-embryo transfer (IVF-ET) or gamete intrafallopian tube transfer (GIFT), ectopic pregnancy can occur, and the incidence rate is about 5%, which is higher than the incidence rate of ectopic pregnancy due to general reasons. The related risk factors include preoperative fallopian tube lesions, pelvic surgery history, technical factors of transplanted embryos, the number and quality of implanted embryos, hormone environment, and excessive transplant fluid during embryo transplantation.

In summary, there are many reasons for ectopic pregnancy. In daily life, we must pay attention to timely treatment of reproductive system diseases and choose a time when both parties are in good mood and physical condition to get pregnant. If you are not considering becoming a mother for the time being, you must do a good job of contraception. Good contraception fundamentally eliminates the occurrence of ectopic pregnancy. Pay attention to hygiene during menstruation, delivery and puerperium to prevent infection of the reproductive system. Determine the location of pregnancy as soon as possible after menopause to detect ectopic pregnancy in time.