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Dilation Once your cervix is stretched and softened, it begins to open, or dilate, so that your baby can pass through into the vagina to be born. Zero station means the head is "engaged" and has entered the vaginal canal within the pelvic bones. You are less than 37 weeks pregnant and are showing any signs of pre-term labor. After the cervix begins to efface, it will also start to open.
Your doctor or midwife may start checking for gradual effacement during your last two months of pregnancy with internal exams during your prenatal visits.
If your labor doesn't begin within a specific time period, your physician may want to bring on induce labor.
Anatomy of the Uterine Cervix. Stage II. Stages of Childbirth: Southwestern Medical Center.
Health Tools. Your physician or midwife should evaluate you and your baby as soon as possible after your water breaks. Sign up now.
Give today. That's because the baby is at risk of developing an infection in the uterus once the protective fluid is gone.
Contractions During Labor: The Station The "station" refers to the position of your baby's head in relation to your pelvis. A negative number -5 to 0 means that the head isn't engaged in the pelvis.
This is also referred to as 50 percent effaced. Giving Birth by Vaginal Delivery. What You Need to Know.
The bad news is that it puts more pressure on your bladder, so you may be visiting the bathroom more than you ever thought possible. Cervical effacement and dilation During the first stage of labor, the cervix opens dilates and thins out effaces to allow the baby to move into the birth canal.
How fast the cervix thins and opens varies for each woman.