Skip to Content
Home > Your Health > Health and Wellness Library > Preterm Labor: Testing for Fetal Fibronectin
View Additional Section Content
During pregnancy, a uterine infection causes
inflammation, which can trigger preterm labor. This
inflammation can also stimulate the
amnion cells to produce fetal fibronectin, a protein.
Fetal fibronectin testing is sometimes done when preterm labor
symptoms are present. When the fetal fibronectin test is negative, it is
unlikely that you are having preterm labor. But even if the test is positive,
it does not mean for sure that you are having preterm labor.
For fetal fibronectin testing, a sample of fluid
is collected from the vagina or the opening to the uterus (cervix). First, a
speculum is used to spread the walls of the vagina to view the cervix. Next, a
sterile swab is used to absorb fluid from the cervix or vagina. The speculum is
removed and the swab is sent to the laboratory for testing.
A negative test result is quite accurate and shows that labor
has not started. A positive test result may show that
labor has started, but false-positive results are common. False-positive
results can occur if a woman has recently had:
The fetal fibronectin test is:
ByHealthwise StaffPrimary Medical ReviewerSarah Marshall, MD - Family MedicineAdam Husney, MD - Family MedicineSpecialist Medical ReviewerWilliam Gilbert, MD - Maternal and Fetal Medicine
Current as ofMay 30, 2016
Current as of:
May 30, 2016
Sarah Marshall, MD - Family Medicine & Adam Husney, MD - Family Medicine & William Gilbert, MD - Maternal and Fetal Medicine
To learn more about Healthwise, visit Healthwise.org.
© 1995-2016 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Communicate with your medical team, request medication refills and manage appointments through MUHealthe. Learn More
Schedule an appointment today with an MU Health Care provider.
Our support team is available 24 hours a day, seven days a week at 877-621-8014.
Our interactive Decision Points guide you through making key health decisions by combining medical information with your personal information.
You'll find Decision Points to help you answer questions about:
Get started learning more about your health!
Our Interactive Tools can help you make smart decisions for a healthier life. You'll find personal calculators and tools for health and fitness, lifestyle checkups, and pregnancy.
Feeling under the weather?
Use our interactive symptom checker to evaluate your symptoms and determine appropriate action or treatment.
Copyright ©2017 — Curators of the University of Missouri. All rights reserved. DMCA and other copyright information.
Equal Opportunity/Access/Affirmative Action/Pro Disabled & Veteran Employer. For website information contact the Office of Communications. Disclaimer