Uterine scar diverticulum is the place where the uterine incision did not grow well, forming a depression that connects with the uterine cavity. The thickness of the muscular layer at the uterine scar diverticulum is at least 3 to 5 mm before pregnancy can be considered.
Pregnancy with uterine scar diverticulum carries the risk of uterine rupture. Scarred pregnancy means that the gestational sac is embedded in the uterine scar, and there is a risk of placenta implantation or even penetration of the uterus in the middle of pregnancy. The scar is the weakest point, and the uterine muscle fibers stretch and elongate several times in the second trimester of pregnancy, which results in the rupture of the scar and thus the rupture of the uterus.
Women with uterine scar diverticulum should clarify the thickness of the muscle layer at the scar location before getting pregnant, and it is recommended that they go to the hospital for prenatal checkups on a regular basis during pregnancy to avoid any adverse consequences.