Risk factorsBy Mayo Clinic Staff
Various factors can increase your risk of an incompetent cervix. For example:
March 12, 2015
- Congenital conditions. Uterine abnormalities and genetic disorders affecting a fibrous type of protein that makes up your body's connective tissues (collagen) might cause an incompetent cervix. Exposure to diethylstilbestrol (DES), a synthetic form of the hormone estrogen, before birth also has been linked to cervical insufficiency.
- Cervical trauma. If you experienced a cervical tear during a previous labor and delivery, you could have an incompetent cervix. Other surgical procedures involving the cervix, such as those to deal with an abnormal Pap test, may cause damage that contributes to cervical insufficiency.
- Dilation and curettage (D&C). This procedure is used to diagnose or treat various uterine conditions — such as heavy bleeding — or to clear the uterine lining after a miscarriage or abortion. On rare occasions it may cause structural damage to the cervix.
- Berghella V, et al. Cervical insufficiency. http://www.uptodate.com/home. Accessed Dec. 14, 2014.
- Gabbe SG, et al. Obstetrics: Normal and Problem Pregnancies. 6th ed. Philadelphia, Pa.: Churchill Livingstone Elsevier; 2012. http://www.clinicalkey.com. Accessed Dec. 14, 2014.
- Papadakis MA, ed., et al. Current Medical Diagnosis & Treatment 2015. 54th ed. New York, N.Y.: The McGraw-Hill Companies; 2015. http://accessmedicine.mhmedical.com/book.aspx?bookID=1019. Accessed Dec. 14, 2014.
- Cunningham FG, et al. Williams Obstetrics. 24th ed. New York, N.Y.: The McGraw-Hill Companies; 2014. http://accessmedicine.mhmedical.com/book.aspx?bookid=1057. Accessed Dec. 14, 2014.
- Cervical insufficiency. The Merck Manual Professional Edition. http://www.merckmanuals.com/professional/gynecology_and_obstetrics/abnormalities_of_pregnancy/cervical_insufficiency.html#v1073896. Accessed Dec. 14, 2014.
- American College of Obstetricians and Gynecologists (ACOG) Committee on Practice Bulletins — Obstetrics. ACOG Practice Bulletin No. 142: Cerclage for the management of cervical insufficiency. Obstetrics & Gynecology. 2014;123:372.
- What can I do to promote a healthy pregnancy? National Institute of Child Health and Human Development. http://www.nichd.nih.gov/health/topics/preconceptioncare/conditioninfo/pages/healthy-pregnancy.aspx. Accessed Dec. 18, 2014.
- Harms RW (expert opinion). Mayo Clinic, Rochester, Minn. Dec. 19, 2014.