Incompetent cervix

Overview

An incompetent cervix happens when weak cervical tissue causes or plays a part in a premature birth or the loss of a healthy pregnancy. An incompetent cervix also is called cervical insufficiency.

The cervix is the lower part of the uterus that opens to the vagina. Before pregnancy, it’s usually closed and firm. As pregnancy goes on and you get ready to give birth, the cervix slowly changes. It softens, gets shorter and opens. If you have an incompetent cervix, it might begin to open too soon causing you to give birth too early.

An incompetent cervix can be a hard problem to diagnose and treat. If your cervix begins to open early, or if you’ve had cervical insufficiency in the past, you might benefit from treatment. This might include having a procedure done to close the cervix with strong sutures, called a cervical cerclage. You also may take medicine to help the incompetent cervix and have ultrasound exams to check how things are going.

Symptoms

With an incompetent cervix, there may be no signs or symptoms during early pregnancy. Some women have mild discomfort or spotting before the diagnosis. Often, this occurs before 24 weeks of pregnancy.

Be on the lookout for:

  • A feeling of pelvic pressure.
  • A new backache.
  • Mild stomach cramps.
  • A change in vaginal discharge.
  • Light vaginal bleeding.

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