How Does Fetal Fibronectin Testing Work?

Getting tested is as simple as getting a Pap test, except the fFN test checks for the presence of fetal fibronectin. If it finds elevated fFN levels in your vaginal secretions between weeks 22 and 35 of your pregnancy, it could mean that your body is getting ready to go into labor prematurely.

From weeks 22 to 35 of pregnancy, detection of fFN could be a sign that your body is getting ready to go into labor prematurely.

Fetal fibronectin holds your baby against the wall of your uterus, and it is detectable in vaginal secretions when it is first forming this bond in early pregnancy, and then again when the bond is breaking down and your body is getting ready for delivery. If fFN is detected before week 35, you may be about to deliver early.

Recognize the Symptoms

Do you know the symptoms of preterm labor?

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