Characteristics of abortion due to cervical insufficiency

Cervical insufficiency is also known as incomplete closure of the internal cervical os and cervical relaxation. The cervix of patients with cervical insufficiency contains less fibrous tissue, collagen fibers and smooth muscles, or because of the rupture of fibrous tissue in the cervical os, the ability of the muscle wall to expand is reduced, causing the cervix to physiologically expand and relax. The main manifestations of incompetent cervix are premature birth and repetitive miscarriage in the middle and late stages. The incidence of repetitive miscarriage is 8% to 15%. Let’s take a look at the characteristics of abortion due to cervical insufficiency.

Characteristics of abortion due to cervical insufficiency:

Cervical dysfunction does not always mean that the cervical canal is shortened and the cervical opening is relaxed, which can easily lead to premature abortion. The characteristics of miscarriage due to cervical insufficiency include the following aspects: First, miscarriage usually occurs after 4-5 months of pregnancy. Because the baby is relatively heavy at this time, the fetus will cause force compression on the cervix when the pregnant woman stands up, causing the cervical canal to shrink and expand. Second, the pain during induction of labor due to cervical insufficiency is usually not obvious. Without feeling obvious pain, the cervical opening will dilate and even the amniotic sac will be exposed. Third, cervical insufficiency may first manifest as rupture of amniotic fluid in some cases, mainly due to the protrusion of the amniotic sac. The above are the common characteristics of miscarriage caused by cervical insufficiency. If a woman has experienced miscarriage before, she should pay attention to her medical history to determine whether there is cervical insufficiency.

How to protect pregnancy with cervical incompetence?

Under normal circumstances, the internal os of the female cervix serves as a switch portal. Before delivery, it is closed; opening can only be achieved through the contraction and expansion of the uterus during delivery. Therefore, a normally functioning cervix can support pregnancy for nearly ten months. Little do people know that in patients with cervical insufficiency, the cervix loses its original function. When the embryo develops to a certain size, due to the increase in uterine air pressure, the cervix not only fails to maintain its contracted state but instead expands due to excessive pressure. Once this happens, pregnancy cannot be maintained and miscarriage occurs.

Cervical cerclage is the main method for treating cervical insufficiency. Currently, cervical cerclage is mainly performed abdominally and vaginally. Cervical cerclage is performed before and during pregnancy. It is generally recommended to be performed before pregnancy when the uterus is in good condition and normal in size. This is not only convenient for surgical operation, but also not likely to affect the baby in the belly. Cervical cerclage is warmly welcomed by more and more patients with cervical insufficiency due to its advantages such as high comfort and no need to stay in bed.