Search results
Results from the WOW.Com Content Network
During the third trimester of pregnancy, thinning of the lower uterine segment or contractions caused by cervical dilation can increase the amount of stress placed on the placental attachment to the uterine wall. In patients with placenta praevia, these stresses can cause detachment of the placenta from the uterine wall causing haemorrhaging.
A uterine rupture means that the wall of the uterus, at the place of the previous cesarean section or at the place of the niche, opens up, therefore can cause stress to the baby. Having a spontaneous uterine rupture, in other words a uterine rupture without contractions is extremely rare.
An important risk factor for placenta accreta is placenta previa in the presence of a uterine scar. Placenta previa is an independent risk factor for placenta accreta. Additional reported risk factors for placenta accreta include maternal age and multiparity, other prior uterine surgery, prior uterine curettage, uterine irradiation, endometrial ablation, Asherman syndrome, uterine leiomyomata ...
Cervical effacement or cervical ripening refers to the thinning and shortening of the cervix. This process occurs during labor to prepare the cervix for dilation to allow the fetus to pass through the vagina. While this is a normal, physiological process that occurs at the later end of pregnancy, it can also be induced through medications and ...
Transeverse uterine rupture. Uterine rupture is when the muscular wall of the uterus tears during pregnancy or childbirth. [3] Symptoms, while classically including increased pain, vaginal bleeding, or a change in contractions, are not always present. [1] [2] Disability or death of the mother or baby may result. [1] [3]
A hysterectomy is a fairly common surgical procedure wherein the uterus is removed. According to the Centers for Disease Prevention and Control (CDC), 14.6% of women aged 18 years or older had ...
Chorionic hematoma is the pooling of blood between the chorion, a membrane surrounding the embryo, and the uterine wall. [2] It occurs in about 3.1% of all pregnancies , [ 2 ] it is the most common sonographic abnormality and the most common cause of first trimester bleeding .
In the later stages of pregnancy, the cervix may already have opened up to 1–3 cm (or more in rarer circumstances), but during labor, repeated uterine contractions lead to further widening of the cervix to about 6 centimeters. From that point, pressure from the presenting part (head in vertex births or bottom in breech births), along with ...