What are the Stages of Labor?

The first stage of labor is a regular uterine contraction

First stage of delivery

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The first stage of labor is a regular uterine contraction

Chinese name

First stage of delivery

which performed

Regular uterine contraction

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Women pregnancy symptoms

Under normal circumstances, the mother will be examined in the hospital's obstetric emergency room before delivery. After confirming that the birth has started, the first phase of the birth will be spent in the hospital's waiting room.

Regular uterine contractions are a sign of the beginning of labor. Once the uterine contraction begins, the 10-month pregnancy period begins the end process. Contractions will become more rhythmic and not controlled by man. The start interval is longer, usually 10-15 minutes. As the labor process progresses, the interval time is gradually reduced to 5 minutes, 3 minutes, or 1-2 minutes. The feeling of pain during contractions varies from person to person. It is a bit like usual dysmenorrhea in the early stage, but it is also like a rush when you have diarrhea. Afterwards, it hits and leaves. Some people may not feel obvious abdominal pain because of low back pain.

Obstetricians have always attached great importance to the duration, duration, and intensity of uterine contractions. Because, in most cases, with the shortening of the contraction interval and the extension of the contraction duration, the intensity of the contraction will continue to increase. The shortening of the interval between two contractions is extremely important and it reflects the progress of the labor process.

Under the action of uterine muscle contraction, the fetal membrane that surrounds the fetus ruptures. The oppressed fetus cannot continue to stay in the uterine cavity and has to move slowly to the cervix. Therefore, the cervix begins to expand, and the uterus continually contracts, continuously ejecting the fetus outward.

At the beginning of the first stage of labor, with the appearance of regular contractions, each contraction can increase the intrauterine pressure, and the fetal head is compressed and forced to descend toward the cervix. ; At the same time, the fetal membrane at the mouth of the cervix is compressed to form a frontal amniotic fluid sac.

As the contractions continue to increase, the fetal head gradually drops to the cervix.

With the further progress of the labor process, when the mouth is opened to about 10 cm, it is called open mouth.

After the uterine opening is complete, the fetal membrane that surrounds the fetus cannot withstand the compression of the uterine muscle wall and ruptures, and the amniotic fluid flows out of the fetal membrane. This is the normal time of water breakage.

After the water broke, the fetal head began to directly press and dilate the cervix. The amniotic fluid at this time acts to lubricate the birth canal.