What is the cause of infertility caused by uterine fibroids? The exact cause of uterine fibroids is unclear, and it may be related to excessive levels of estrogen in the body and long-term stimulation of estrogen uterine fibroids. Due to the rapid growth of uterine fibroids, different degenerations can occur when blood supply is poor. The larger the fibroid, the more severe the ischemia, and the more secondary degeneration occurs. Gynecological experts say that the causes of infertility caused by uterine fibroids are often caused by multiple factors. Among infertile patients, the incidence of uterine fibroids is about 22-32%, so women should actively treat uterine fibroids.
Gynecological experts introduce the causes of infertility caused by uterine fibroids:
1. Submucosal fibroids growing in the uterine cavity are like foreign bodies in the uterine cavity mechanically obstructing the implantation of fertilized eggs. If the surface of the fibroid becomes ischemic and necrotic, the patient will have repeated irregular vaginal bleeding, causing endometritis, and inflammation will form a new factor affecting infertility.
2. Fibroids growing in the cervix, due to compression of the cervical canal, hinder sperm movement or change the position of the cervical canal, making the cervical opening deviate from the seminal pool of the posterior fornix, which is not conducive to the upward movement of sperm.
3. Fibroids growing in the broad ligament and uterine horn can compress and twist the fallopian tubes when they grow to a certain size, hindering the movement of fertilized eggs and the oocyte collection function of the fimbriae, causing infertility.
4. Large intramural fibroids can deform the uterine cavity, making it unfavorable for sperm to move upward, affecting the implantation of fertilized eggs and fetal development.
5. Uterine fibroids are often accompanied by hyperplastic changes in the endometrium, endometriosis, and adnexal inflammation. These complications are also important causes of infertility.
6. Uterine fibroids can make the frequency, amplitude, and duration of uterine contractions higher than normal baseline, interfering with the implantation of fertilized eggs or causing miscarriage after implantation.
In short, infertility caused by uterine fibroids is often due to fibroids blocking the cervical os or the internal os of the fallopian tube, affecting the passage of sperm, or fibroids occupying the site of fertilized egg implantation, preventing implantation. Even if pregnancy occurs, it often leads to miscarriage due to the impact on embryo development. In late pregnancy, abnormal uterine contraction force can lead to premature birth, obstruct delivery, or cause postpartum hemorrhage.
This article is excerpted from: Changchun Gynecology Hospital Official Website Original address: http://www.tjfk999.com/zigongxingbuyun/201012121341.html To learn more about gynecological diseases, please visit the official website of Changchun Gynecology Hospital.