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Doctor insights on: Causes Of Cervix Dilation

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Dr. Andrew Seibert
4 Doctors shared insights

Pregnancy (Definition)

When your due date arrives, you will be more than ready to have your baby! Most women deliver the baby somewhere between 37 and 42 weeks. According to the American College of Obstetricians and Gynecologists, only 5% of babies arrive on the exact due date. Approximately 7% of babies are not delivered by 42 weeks, and when that happens, it is referred to ...Read more


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Does your cervix dilate during your period?

Cervix and period: The cervix will open very slightly while a woman is on her period. It is nothing close to the amount of dilation that happens during labor. ...Read more

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I'm contracting but my cervix isn't changing. How can I help my cervix dilate. I'm 39.5 weeks along. Only 1 CM but I continue to have contractions.

I'm contracting but my cervix isn't changing. How can I help my cervix dilate. I'm 39.5 weeks along. Only 1 CM but I continue to have contractions.

Braxton Hicks: The contractions (braxton hicks) that you are experiencing are the warm up for the concert that will soon begin. When actual progressive labor begins, your cervix will dilate an there is nothing that you can do to alter those events. 'if the apple is ripe, it will fall off the tree'. ...Read more

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Does the cervix dilate before period?

In a way: There is some variation in the opening of the cervix throughout your monthly cycle. It doesn't dilate in the sense that you dilate at the time of delivery to 10 centimeters or more, but there is a cyclic variation, (very mild), as you prepare to bleed ...Read more

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What reasons would your cervix dilate if you aren't pregnant? I have an IUD, but it seems in place & no pain. Some bleeding

What reasons would your cervix dilate if you aren't pregnant? I have an IUD, but it seems in place & no pain. Some bleeding

Menstrual cycle: The degree to which the cervical canal is dilated various with the menstrual cycle. Typically, the cervical canal widens a little bit to accommodate the passage of menstrual blood. Around ovulation, midcycle, some women notice a clear, stringy discharge. These are all normal changes happening. An IUD does not affect the cervical canal. ...Read more

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Does the cervix dilate throughout your cycle?

Very slightly: There are very small changes in the size of the opening of the cervix during the menstrual cycle. This small amount of dilation at the time of ovulation when the cervix is slightly more open, is much less "dilation" than occurs in labor (up to 10 cm). ...Read more

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Can baby kicks on the cervix dilate or efface it? My baby is breech and I feel like she's slaughtering me down there. 22w6d pregnant

Can baby kicks on the cervix dilate or efface it? My baby is breech and I feel like she's slaughtering me down there. 22w6d pregnant

No trap door: Your designer considered many contingencies in how to carry on the lineage. Jumping jacks and judo should be tolerable without difficulty. Should ask your ob, who might review your u/s just to be sure placenta also not low/previa, which might pose a theoretical concern. Happy baby. Sorry for the pain! ...Read more

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Is 1.5cm dilation at 22 weeks pregnancy is Cervical incompetency? Usually heard that cervical dilation at 20-50mm is incompetent. What is true?

Controversial topic: Premature cervical changes (dilatation, shortening, funneling, softening...) are difficult to measure and to interpret. Sonographic or clinical exams of your cervix are very variable, very subjective, not accurate nor reliable predictors of premature labor or preterm delivery. Consult a knowledgeable MFM doctor regarding accepted criteria for "cervical insufficiency". Your risks at 22wks. Seem small. ...Read more

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Is it more likely for your cervix to thin and dilate quicker with 4 pregnancy? First 3 all normal and successful

Is it more likely for your cervix to thin and dilate quicker with 4 pregnancy? First 3 all normal and successful

Good question: That's such a good question, and the answer is complicated. In my experience, women who had a lot of deliveries oftentimes the cervix will be the same for weeks on end and then will change suddenly. That is, labor when it comes causes rapid changes to the cervix. I'm like a woman's first delivery where the change is more methodical. ...Read more

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Can brackstonhicks dilate your cervix at end of pregnancy coz my husband checked and he can get 2 fingers in?

YOUR HUSBAND: Should not be checking your cervix unless he is your doctor! If you have already had 5 births it is common for your cervix to be dilated some toward term please discuss with your OB and let your OB check if your OB thinks that is indicated for you. ...Read more

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If I am at risk for preterm labor (twin pregnancy, lots of bh contractions, 2 CM cervix, 1 CM dilation, positive ffn), what can I do to lower my risk?

If I am at risk for preterm labor (twin pregnancy, lots of bh contractions, 2 CM cervix, 1 CM dilation, positive ffn), what can I do to lower my risk?

MFM care.: Depending on your gestational age maternal-fetal medicine consultation will help you and the babies achieve the optimal perinatal outcome. Pessary apparently may help prevent twin preterm birth, but pretty much nothing else helps. Please see an mfm to assess chorionicity and possibility of ttts/ops. Steroids and short term tocolysis (magnesium sulfate for 48 hours) help and should be considered! ...Read more

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How much cervix should be dilated in 39 weeks of pregnancy?

How much cervix should be dilated in 39 weeks of pregnancy?

No particular amount: At 39 weeks, your cervix could be dilated anywhere from 0-2 or 3 cm. However, it can be highly variable and usually depends on how many children you have had. But there's no particular cervical dilation that you should be at 39 weeks. Just remember, every woman's body is a little different. Good luck! ...Read more

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In my pregnancies, my cervix dilated early. I was put on bedrest at 30weeks the first time and then 28. Why did that happen? Is there a name for this?

In my pregnancies, my cervix dilated early. I was put on bedrest at 30weeks the first time and then 28. Why did that happen? Is there a name for this?

Cervical insufficien: There are many thoughts to why an individual may have cervical insufficiency. The highest risk for this is reoccurance ...Read more

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I dilated fully with no contractions at 37 weeks. The only sign of labor was my water broke. Should I be concerned with my cervix with next pregnancy?

I dilated fully with no contractions at 37 weeks. The only sign of labor was my water broke. Should I be concerned with my cervix with next pregnancy?

Maybe: If this were a 2nd event or more, then the cervix is certainly a concern. If not, there are other reasons such as your inability to perceive the labor contractions or an overlying undiagnosed concomitant medical condition that increases uterine irritability. ...Read more

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I made a delivery with c section I want to know why my cervix didn't dilate and is there a chance my cervix will dilate in my 2 preganancy?

I made a delivery with c section I want to know why my cervix didn't dilate and is there a chance my cervix will dilate in my 2 preganancy?

Well: There are many possibilities. However you were given a c section due to concern for the baby. If there is no progression of the delivery or the baby is showing signs of compromise you need to get the baby out. Next pregnancy you can try a normal vaginal delivery. Each pregnancy is different. However if next baby is c section any baby after that will also be c section ...Read more

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How your cervix should feel in early pregnancy?

Cervix: Cervical position is not a reliable indicator for pregnancy. After ovulation the cervix drops ; feels firm. This will be followed by the cervix rising ; becoming softer. The timing is of these changes is not consistent. ...Read more

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3wks pregnancy, cervix sensitive, should I be concerned?

Cervix: Cervix during pregnancy also undergoes physiological changes. Vessels enlarge and mucous plug is formed. Cervix its sensitive during pregnancy, especially during intimacy, leading to early vaginal bleeding if injured. ...Read more

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How should my cervix feel in early pregnancy?

As above: People can feel differently, when u get pregnant u will find out how u feel. ...Read more

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I read that abortion requires cervical dilation. How do they do it?

Gradually: A series of metal rods of increasing diameter are inserted through the cervix to gently stretch and widen the opening. ...Read more

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My pg test comes out negative but my cervix is unusually high. Is that a sign of pregnancy?

??? Question: Not sure what the question is here, but the way your uterus/cervix is positioned or "siting' in your vaginal vault has no bearing on pregnancy without a positive pregnancy test. ...Read more

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What are the latest findings to preserve a pregnancy with short cervix and delivery near 20 weeks?

What are the latest findings to preserve a pregnancy with short cervix and delivery near 20 weeks?

Complex: If you have a short cervix and no history of preterm birth, vaginal Progesterone can be very helpful. If you have a prior preterm birth, cerclage may be the way to go. Talk to your doctor about the specifics of your case. ...Read more

Dr. Janice Alexander
24 Doctors shared insights

Cervical Dilation (Definition)

When your cervix is fully dilated, your doctor gives you the OK to push. Propelled by your effort and the force of your contractions, the baby makes his way through the birth canal. The fontanels -- soft spots -- on his head allow it to mold to the shape of this narrow passage. Your baby's head "crowns" when the widest part of it is ...Read more


Cervix (Definition)

The uterine cervix is the opening of the ...Read more