The time it takes for the opening of the uterus usually means that the uterus opens about 1cm. The time it takes varies from one pregnant woman to another, depending on her individual physical condition; some pregnant women have a more dilated cervix and open faster, usually within a few hours, while others take longer. Generally, after regular contractions in primigravida, a finger can be opened in 2-3 hours, up to 12 hours. The time taken by a woman in labor is usually less. The labor process is divided into the first stage of labor, the second stage of labor, and the third stage of labor. The first stage of labor is divided into latent period and active period, the latent period is long, from labor to the opening of the uterus 4-6cm, generally not more than 20 hours for primiparous women, not more than 14 hours for women in labor; the active period from the opening of the uterus 4-6cm to the opening of the uterus 10cm, generally not more than 8 hours. The second stage of labor is the stage of breath-holding and exertion of the mother, generally not more than 3 hours for primigravida and not more than 2 hours for menstruating mothers. The third stage of labor refers to the stage of placenta delivery, which takes about 30 minutes or less. During the interval of labor pain, if the doctor allows, you can try to get out of bed and walk or climb stairs with the help of your family; follow the advice of the doctor and nurse to strengthen contractions by stimulating the mother’s nipples. Before the birth, the mother should be well prepared, have patience and listen to the doctor’s instructions to prepare early to ensure the safe birth of the baby.