Ectopic pregnancy, as the name suggests, refers to a pregnancy that occurs outside the uterus, such as tubal pregnancy, abdominal pregnancy, etc. For female friends, it is necessary to understand the causes of ectopic pregnancy in order to better prevent it. So, what are the causes of ectopic pregnancy? Below are five major reasons for ectopic pregnancy.
1. Tubal inflammation
It can be divided into salpingitis and perisalpingitis, both of which are common causes of tubal pregnancy. Severe salpingitis can cause complete blockage of the fallopian tube lumen, leading to infertility. Perisalpingitis lesions mainly occur in the serosal layer or seromuscular layer of the fallopian tubes, often causing adhesions around the tubes, twisting of the tubes, narrowing of the lumen, weakened peristalsis of the tube wall muscles, and affecting the movement of fertilized eggs.
2. Tubal dysplasia or dysfunction
Tubal dysplasia often manifests as long fallopian tubes, poor muscle development, and lack of mucosal cilia. The function of the fallopian tubes is regulated by estrogen and progesterone. If the regulation fails, it will affect the normal operation of the fertilized egg.
3. Fertilized egg migration
The egg is fertilized in one fallopian tube, and the fertilized egg enters the opposite fallopian tube through the uterine cavity or abdominal cavity, which is called fertilized egg migration. If the migration time is too long and the fertilized egg develops and enlarges, it can implant in the contralateral fallopian tube to form a tubal pregnancy.
4. Placement of intrauterine device
The use of contraceptive devices itself does not increase the incidence of ectopic pregnancy, but if a woman becomes pregnant due to contraceptive failure caused by contraceptive devices, the chance of ectopic pregnancy is higher.
5. Cause of illness
The compression of tumors around the fallopian tubes, such as uterine fibroids or ovarian tumors, sometimes affects the patency of the fallopian tube lumen and obstructs the movement of fertilized eggs. Endometriosis can increase the likelihood of fertilized eggs implanting in the fallopian tubes.
Many female friends want to know the causes of ectopic pregnancy. In fact, there are many reasons that can cause ectopic pregnancy. In addition to being related to the fallopian tubes, it may also be related to the migration of fertilized eggs, contraceptive failure with intrauterine devices, and certain diseases. So, it is important to avoid these factors as much as possible in order to better prevent ectopic pregnancy.
