how many cm dilated before delivery?
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The cervix must be 100 percent effaced and 10 centimeters dilated before a vaginal delivery. The first stage of labor and birth occurs when you begin to feel regular contractions, which cause the cervix to open (dilate) and soften, shorten and thin (effacement). This allows the baby to move into the birth canal.
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Once you begin active labor, you'll have strong contractions around a minute long and 3-5 minutes apart. It may be hard to talk or move easily. At this point, your cervix will be dilated 3-10 centimeters.
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Typically, a cervix that is 10 centimeters dilated means you are ready to give birth. It's possible to be a few centimeters dilated for several weeks before labor occurs, though.
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The first stage is the longest part of labor and can last up to 20 hours. It begins when your cervix starts to open (dilate) and ends when it is completely open (fully dilated) at 10 centimeters. When the cervix dilates from 0 to 3 or 4 centimeters, contractions get stronger as time progresses.
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The cervix can be dilated to 1 centimeter for weeks before the beginning of labor. This extent of dilation only signals that the cervix is starting to prepare for labor. Most pregnant women spend some time wondering when they will go into labor, especially as the due date draws near.
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Once the cervix is around 4 cm dilated and you are having regular contractions we finally say you are “in labour”! During your induction all pain relief options are available for you.
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Now it's time for the real work to begin. During active labor, your cervix will dilate from 6 centimeters (cm) to 10 cm. Your contractions will become stronger, closer together and regular.
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For a vaginal delivery, the cervix needs to be 10 centimeters (cm) dilated and 100 percent effaced. While cervical dilation is necessary for labor to progress, being dilated isn't necessarily a sign that true labor is starting. In some cases, women will dilate a few centimeters weeks before their due date.
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Dilation: Your cervix opens. Typically, if you're 4 cm dilated, you're in the active stage of labor; if you're fully dilated, you're ready to start pushing.
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How long it lasts: Active labor often lasts four to eight hours or more. On average, your cervix will dilate at approximately one centimeter per hour.
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During active labor, your cervix will dilate from 6 centimeters (cm) to 10 cm. Your contractions will become stronger, closer together and regular.
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In phase 1, called early labor or the latent phase, the cervix is dilated from 0 to 3 cm. You may have mild to moderate contractions every 5 to 20 minutes. You may be uncomfortable, with a backache, feeling of fullness, or menstrual-like pain.
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Generally speaking, once you are dilated past 5 or 6 centimeters and having regular contractions, most practitioners will be fairly insistent that you remain in the hospital or birth center until your baby is born.
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During labor, the cervix opens to accommodate the passage of baby's head into the vagina, which is around 10 centimeters (cm) dilated for most term babies. If the cervix isn't open, for example, a woman isn't in labor.
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Stage two: full dilation and pushing Once the cervix has reached 10 cm, it is time to push the baby out. Contractions continue but also produce a strong urge to push. This urge might feel like an intense need to have a bowel movement. This stage can last anywhere from a few minutes to a few hours.
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The second stage of labor begins when your cervix is fully dilated at 10 centimeters. This stage continues until your baby passes through the birth canal, vagina, and is born.
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Early labor will last approximately 8-12 hours. Your cervix will efface and dilate to 4 cm. Contractions will last about 30-45 seconds, giving you 5-30 minutes of rest between contractions.