Ectopic pregnancy inflicts profound harm and impact on women and their families, effects that cannot be easily overcome in the short term. Many women who experience ectopic pregnancy are perplexed: despite maintaining healthy lifestyle habits and taking meticulous precautions during pregnancy preparation, why did ectopic pregnancy still occur? Let us now explore the causes of ectopic pregnancy formation.
1. History of ectopic pregnancy. Women who have previously experienced an ectopic pregnancy face a significantly higher risk of recurrence, though it typically occurs in the opposite fallopian tube.
2. IUD use. Approximately 3% of women with an intrauterine device (IUD) can still conceive. Therefore, even with an IUD in place, severe abdominal pain should prompt consideration of ectopic pregnancy.
3. Chronic pelvic inflammatory disease (PID). Chronic PID, particularly salpingitis, can narrow the fallopian tube lumen, obstructing the fertilized egg's passage into the uterine cavity. With no viable route to the uterus, the fertilized egg may implant within the fallopian tube or ovary.
4. Abnormal Fallopian Tube Development or Previous Tubal Surgery. Women with congenital abnormalities such as excessively long fallopian tubes or absent cilia on the mucosal lining, or those who have undergone procedures like tubal ligation reversal or tubal reconstruction, are at increased risk for ectopic pregnancy.
5. Repeated Abortions.With changing social attitudes, premarital sex has become increasingly common, leading to a rise in unintended pregnancies. Repeated abortions significantly increase the risk of ectopic pregnancy. Therefore, regardless of previous pregnancies, women should practice effective contraception to prevent ectopic pregnancies.
6. Tubal inflammation. Approximately 60% of ectopic pregnancy patients have a history of salpingitis.Chronic, recurrent tubal inflammation can cause adhesions in the tubal mucosal folds, damage cilia, narrow the lumen, or lead to adhesions and twisting of the fallopian tube with surrounding tissues due to inflammation. This impairs normal peristalsis, obstructing the fertilized egg's passage and preventing it from reaching the uterine cavity on schedule, resulting in implantation within the fallopian tube.