What is the most common site of ectopic pregnancy?

Ectopic pregnancy is also called ectopic pregnancy. It mostly occurs due to inflammation around the female fallopian tube. Therefore, the most common site of ectopic pregnancy in women is the fallopian tube. It is also the most harmful to women. If it is not treated properly or not treated in time, it is very likely to cause infertility in women. Therefore, female friends must not take ectopic pregnancy lightly!

Tubal pregnancy

It is one of the common acute abdominal diseases in obstetrics and gynecology. When it miscarries or ruptures, it can cause massive bleeding in the abdominal cavity. If diagnosis and treatment are delayed, it can endanger the life of the pregnant woman. The most common site of disease occurrence is the ampulla of the fallopian tube, accounting for about 60%, followed by the isthmus and fimbria of the fallopian tube, and pregnancy in the interstitial part of the fallopian tube is less common.

Cesarean scar pregnancy

A fertilized egg implanted in the isthmus of the anterior uterine wall or in the scar of a previous cesarean section and growing and developing there is called a cesarean scar pregnancy (CSP). It is a special type of ectopic pregnancy, which was previously called isthmus pregnancy or intramural pregnancy. The incidence has increased significantly in recent years. The cause of the disease is unclear, but it is speculated to be related to the defective healing of the lower uterine endometrium after cesarean section. The gestational sac is deeply implanted in the cesarean section scar. Uterine rupture or heavy bleeding may occur in early pregnancy. Placenta implantation increases significantly in late pregnancy. If not treated in time, it may endanger the life of the pregnant woman.

The ultrasound diagnostic criteria are: no gestational sac is seen in the uterine cavity, no gestational sac is seen in the cervical canal, the gestational sac grows on the anterior wall of the isthmus of the uterus, and the muscle wall between the bladder and the gestational sac is weak. According to the relationship between the gestational sac and the uterine myometrium, CSP can be divided into two types. One is that the gestational sac is implanted in the cesarean section incision scar and grows into the uterine cavity as a whole. This type of pregnancy can continue to the middle or late pregnancy, or even full-term delivery, but the possibility of complications such as placenta implantation and severe hemorrhage is very high. The other is that the gestational sac is completely implanted in the scar defect and grows into the bladder and abdominal cavity. Bleeding and even uterine rupture occur in early pregnancy, which is also very dangerous. Most of the literature reports are of this type. When making a diagnosis, it should be differentiated from cervical pregnancy, isthmic pregnancy, intrauterine pregnancy abortion, trophoblastic lobe disease, etc. The treatment principles should be individualized, with the principles of saving the patient's life, preserving reproductive function, and reducing complications. It should be determined according to the specific circumstances. Treatment methods include: uterine artery embolization followed by curettage, ultrasound-guided curettage and conservative treatment with methotrexate, laparoscopic or open uterine local incision to remove lesions and repair, hysterectomy, etc.