Normal cervical ostium picture

Pregnant women generally do not feel much pain at the beginning of labor. As the uterus contracts normally, the cervix will open slightly. When the pregnant woman clearly feels the contraction of the uterus, the cervix will open halfway. At this time, you often want to exert force but can't, and the pain becomes more and more obvious. This is also the most difficult stage for pregnant women, but you can't give up. You must persist in exerting force no matter what. When the pain interval is about 1 minute, the cervix is ​​completely open, and the cervix to the vagina has been connected into one, becoming a safe passage for the baby to be born. So do you know when the cervix of a pregnant woman opens?

The process of cervical dilation is relatively slow. Generally, the cervix will slowly dilate in the second week after the ninth month of pregnancy. Your cervix will dilate to 10 cm when the baby is born. It is slower at the beginning. It takes an average of 8 hours from before delivery to when the cervix is ​​dilated by 3 cm, and an average of 4 hours from when the cervix is ​​dilated by 3 cm to when it is dilated by 10 cm. Normally, medications for pain are not used until the cervix has dilated to 3 cm. This indicates that when a pregnant woman enters the active stage of labor, the cervix has already dilated to 3 cm, the cervix becomes loose, soft and quite elastic, and each uterine contraction is 2-3 cm. Before and after delivery, with regular uterine contractions, the cervix will gradually dilate.

What is the cervix?

The cervical opening can also be called cervical dilation. During the delivery process, the uterus will contract regularly, and will continue to pull the fibers and muscles around the uterus. The external cervical opening will gradually dilate over time until it can allow the fetal head to pass through. This whole process is called cervical dilation. The degree of cervical dilation in pregnant women is generally divided into a dangerous period and an active period. The dangerous period is when regular uterine contractions occur until the cervical dilation reaches 3 cm, and the active period refers to the stage when the cervical dilation reaches 3-10 cm. It should be noted that the rate of cervical dilation is different for primiparas and primiparas.

The process of female labor is mainly divided into three stages, and the dilation of the female cervix is ​​different in each different stage. Generally speaking, the process of cervical dilation is relatively slow at the beginning, and the cervical dilation will gradually expand with regular uterine contractions before and after delivery. Before the cervix is ​​enlarged by 3 cm, the pregnant woman can walk around in the delivery room at will. After the cervix is ​​enlarged by 3 cm, she can sleep on her side on the bed (preferably the left side) to prevent the enlarged uterus from compressing the inferior vena cava and affecting the blood supply to the embryo. If a pregnant woman encounters a situation where the cervix cannot open, she can rely on medication or perform a caesarean section under the guidance of a doctor, and should welcome the arrival of the little life with a relaxed mentality.