What is Fibronectin?
Fibronectin is a human protein found in the birth canal of pregnant women. It functions like glue, binding the membranes around a developing baby to the inside of the womb.
Normally Fibronectin is only detectable at either end of pregnancy - in the early stage when the membranes are forming, or later when the womb is preparing for labour.
How is measuring Fibronectin useful?
Research has shown that women between 23 and 35 weeks of pregnancy who test positive for Fibronectin are at increased risk of premature labour within 2 weeks or less after the test.
Increasingly Doctors are using Fibronectin to identify women who may go into premature labour.