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Prior to effacement, the cervix is like a long bottleneck, usually about four centimeters in length. Throughout pregnancy, the cervix is tightly closed and protected by a plug of mucus. Effacement is accompanied by cervical dilation. When the cervix effaces, the mucus plug is loosened and passes out of the vagina.
The conduit of the cervix is the organ that allows for blood to flow from a woman's uterus and out through her vagina at menstruation, which occurs in the absence of pregnancy. Several methods of contraception aim to prevent fertilization by blocking this conduit, including cervical caps and cervical diaphragms , preventing the passage of sperm ...
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 ...
"Five years later, during my second pregnancy, my doctor placed a cerclage on my cervix at 13 weeks." After her initial loss, Napierata's sister went on to have a healthy pregnancy. "She had a ...
In cases of cervical weakness, dilation and effacement of the cervix may occur without pain or uterine contractions. In a normal pregnancy, dilation and effacement occurs in response to uterine contractions. Cervical weakness becomes a problem when the cervix is pushed to open by the growing pressure in the uterus as pregnancy progresses.
The cervix remains soft after birth. The vagina contracts and begins to return to the size before pregnancy. For four to six weeks of the postpartum period the vagina will discharge lochia , a discharge containing blood, mucus, and uterine tissue.
A cervical pregnancy is an ectopic pregnancy that has implanted in the uterine endocervix. [2] Such a pregnancy typically aborts within the first trimester , however, if it is implanted closer to the uterine cavity – a so-called cervico-isthmic pregnancy – it may continue longer. [ 3 ]
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