For many couples, ectopic pregnancy is one of the most reluctant issues to face. So, what exactly causes an ectopic pregnancy?Can IVF avoid ectopic pregnancy?
part.01
What are the causes of ectopic pregnancy?
Fallopian tube factors.
If there is a problem with the fallopian tubes, such as salpingitis, blocked fallopian tubes, tubal dysplasia, and previous tubal surgery, it may prevent the fertilized egg from reaching the uterus through the fallopian tubes, resulting in ectopic pregnancy.
Endometriosis.
Women with endometriosis are prone to ectopic pregnancy due to changes in the pelvic environment, which makes it difficult for the fallopian tubes to play a role in transportation, and on the other hand, the uterus is not conducive to the implantation of fertilized eggs.
History of multiple ** surgeries.
Repeated curettage and uterine clearance operations will not only lead to thinning of the endometrium, but also easily cause intrauterine adhesions, which is not conducive to the implantation of fertilized eggs and increases the probability of ectopic pregnancy.
History of ectopic pregnancy. If you've had an ectopic pregnancy before, you're more likely to have an ectopic pregnancy if you're pregnant again.
History of smoking. Studies have shown that women who smoke for a long time have a higher risk of developing ectopic pregnancies.
part.02
Can IVF avoid ectopic pregnancy?
Many patients may think that IVF is a direct transfer of embryos into the woman's uterine cavity, so that ectopic pregnancy will not occur. But in fact, IVF also has the risk of ectopic pregnancy.
Because the embryo is not implanted immediately into the uterine cavity, it will also wander in the uterine cavity for about 3-5 days until a suitable implantation site is found. An ectopic pregnancy occurs if the embryo travels outside the uterine cavity to implant during this time.
In addition to embryonic migration, there are also factors such as poor uterine cavity environment, endometrial peristalsis, and improper technique that may lead to ectopic pregnancy.
However, compared with natural pregnancy, the incidence of IVF ectopic pregnancy is lower, about 2-3%. It is recommended that all IVF sisters should monitor the changes in blood HCG value and perform B-ultrasound examination on time after embryo transfer, so as to rule out the possibility of ectopic pregnancy in time.