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Ashley S. Roman, MD
OB-GYN

Q&A: What Exactly Is An Incompetent Cervix?

What exactly is an incompetent cervix?

Incompetent cervix is the weakening of the cervix so that it effaces and dilates when you're not having any contractions. Incompetent cervix is usually only diagnosed if a woman has previously lost a pregnancy because of it. If you're in this situation, your doctor may order a cerclage, a surgery intended to sew the cervix so dilation isn't possible. According to the American Pregnancy Association, incompetent or weakened cervix only happens in about 1 to 2 percent of pregnancies.