Why can fallopian tube problems cause infertility? This is related to the physiological and anatomical shape of the fallopian tube. The fallopian tube is a pair of slender and curved tubes. The proximal end is connected to the uterine horn, and the distal end is free and umbrella-shaped and close to the ovary. The total length is about 8 to 14 cm. The fallopian tube is where the egg and sperm meet. The fertilized egg travels from the fallopian tube to the uterine cavity. The fimbria of the fallopian tube are about 1 cm long and play a role in collecting eggs. The fallopian tube wall muscle is composed of 2 layers, the inner is circular and the outer is longitudinal. Due to muscle contraction, peristalsis of the fallopian tube from distal to proximal end can occur. The inner layer of the tube wall is ciliated cells, with cilia attached to them, which can swing and transport the fertilized egg to the uterine cavity. Due to the anatomical structure of the fallopian tube, it can better promote the combination of sperm and egg and transport them to implant in the uterine cavity. Infertility can occur when the fallopian tubes become diseased or their function is affected.
Common fallopian tube factors that cause infertility include:
(1) The fallopian tube is underdeveloped or the fallopian tube is too slender and curved, which affects the meeting and delivery of eggs and sperm. Interfering with the operation of pregnant eggs.
(2) The contraction function of the fallopian tube muscles is weakened, which affects the normal peristalsis of the fallopian tube and thus affects the movement of the pregnant egg.
(3) Due to inflammation, the peristalsis of epithelial cilia on the inner wall of the fallopian tube decreases, affecting the movement of pregnant eggs. Neisseria gonorrhoeae or tuberculosis infection can cause the fimbriae or part of the fallopian tube to be blocked, leading to fallopian tube obstruction. Due to fallopian tube tuberculosis, the endometrium of the fallopian tube is damaged, the cilia are destroyed, or the fallopian tube is unevenly thickened and blocked by adhesions.
(4) Due to pelvic inflammatory disease or perforated appendicitis, infection around the fallopian tubes may occur, resulting in fallopian tube obstruction, adhesion and abnormal peristalsis, leading to infertility.
(5) Due to pelvic endometriosis, the prostaglandin content in the peritoneal fluid is too high, which causes abnormal peristalsis of the fallopian tube and affects the uptake of eggs and the movement of pregnant eggs.
In short, fallopian tube lesions often affect the combination of eggs and sperm and hinder the movement of pregnant eggs, causing infertility.
This article is provided by Baidu Reading and is excerpted from \”The Clear \”Conception\” Plan\” Author: Sun Jianqiu and Xie Yingbiao