Q&A: What Is a Fetal Fibronectin Test?

My doctor says I need a fetal fibronectin test. What the heck is that?
Save article
ByAshley S. Roman, MD
OB-GYN
Updated
Feb 2017
Hero Image

Fetal fibronectin is a protein that’s normally present in a pregnant woman’s uterus. It’s thought to be the glue holding the bag of water to the uterus. If your doctor says you need this test, it’s likely because you have a condition that puts you at risk for preterm birth, such as you’re carrying multiples or you had a previous preterm birth. For the test, your doctor will test a swab of your vaginal secretions to see if there’s fetal fibronectin present. If there is, it could be a sign your body is getting ready for labor early and gives your doctor a heads-up that she may need to take measures to help prevent you from delivering prematurely.

Related Video
Save article

Q&A: Why CVS/amnio?

Paula Kashtan

There May Be a New Noninvasive Way to Diagnose Fetal Genetic Disorders

Ashley Edwards Walker
Contributing Writer
Published
08/27/2019

Should I Get Genetic Testing?

Jennifer L.W. Fink
Registered Nurse

Prenatal Breakthrough: Introducing a Blood Test for Preeclampsia

Anisa Arsenault
Associate Editor
Published
05/03/2018

This Mom Will Turn Your Sonograms Into Art

Anisa Arsenault
Associate Editor
Published
03/14/2018
Article removed.