Vaginal Exam for Preterm Labor
If you have symptoms of preterm labor, your doctor or nurse-midwife may examine you by feeling your cervix. If your contractions continue over a period of hours, you may be examined periodically to see whether your cervix is opening (dilating) or thinning (effacing).
These exams allow your health professional to:
Why It Is Done
Vaginal exams are done when a pregnant woman has:
Preterm labor is diagnosed when a woman who is 20 to 37 weeks pregnant has uterine contractions and her cervix has changed, as seen with a vaginal exam.
Preterm labor is not diagnosed if contractions are occurring but the cervix is not becoming thinner or more dilated (open).
What To Think About
When a vaginal exam is not done to assess for preterm labor
When the amniotic membranes rupture early (preterm premature rupture of membranes, or pPROM), sterile speculum exams are kept to a minimum, and digital exams are avoided. This is meant to reduce the risk of infecting the uterus and fetus.
eMedicineHealth Medical Reference from Healthwise
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