How long does it take for the cervix to open after spotting?

How long will it take for the cervix to open after the first pregnancy? At the beginning of labor (the pain interval is 5 to 10 minutes), the pregnant woman will not feel much pain, the uterus will contract normally, and the cervix will open slightly. The most time-consuming period (the pain interval is about 4 to 5 minutes) is when you can clearly feel the contraction of the uterus. It is also the most time-consuming time. At this time, the cervix is ​​half open. What are the signs before a pregnant woman sees spotting? Let’s take a look.

When does the cervix open?

The process of cervical dilation is relatively slow. Generally, the cervix will slowly dilate in the second week after the ninth month of pregnancy, which is also the process of cervical formation. Your cervix dilates to 10 cm when the newborn is born. It is slow at the beginning. It takes an average of 8 hours from before delivery to when the cervix dilates 3 cm, and an average of 4 hours from when the cervix dilates 3 cm to 10 cm.

Generally, some medicines will not be used for pain until the cervix is ​​dilated to 3 cm. It indicates that the pregnant woman has entered the active stage of labor. The cervix has already dilated to 3 cm, the cervix has become loose, soft, and quite elastic, and each uterine contraction is 2-3 cm. Before and after delivery, the cervix will gradually enlarge due to regular uterine contractions. The first stage of labor is divided into two stages according to the degree of cervical dilation: the critical stage and the active stage. The dangerous period is when regular uterine contractions occur until the cervix dilates by 3 centimeters, and the active period is when the cervix dilates by 3-10 centimeters. It should be pointed out here that the rate of cervical dilation is different for primiparas and primigravidas.

In primiparas, the cervix first contracts and expands, and then the cervix expands; while in primiparas, the cervix contracts, expands, and expands at the same time. Therefore, the labor speed of primiparas is significantly higher than that of primiparas, which is also the key reason why the progress of the first stage of labor is different between primiparas and primiparas. During the dangerous period, the cervical opening enlarges slowly, but during the active period, it accelerates significantly. The critical period of first labor takes about 8 hours. The rate of primipara is faster than that of primipara, but there is a lot of difference between individuals. The length of the critical period varies from person to person, ranging from tens of minutes to several hours. The active period of primipara takes about 4 hours. After entering the active period, primiparas should prepare for delivery, because the cervix of primiparas usually fully dilates soon after entering the active period.