Contractions that occur once every 2 minutes are more frequent and usually stronger, and the uterus has opened fully. If the uterus has not opened fully, there may be a possibility of failure of the trial of labor, and further treatment by the doctor is needed. Under normal circumstances, it is necessary to judge the time required for the delivery of the fetus according to whether or not the mother chooses to have a painless delivery and her labor history. 1. Without painless delivery: the maximum time from the opening of the uterus to the delivery of the fetus is usually less than 3 hours for primigravid women, and less than 2 hours for women with a history of labor; 2. With painless delivery: the time is extended by one hour on the basis of the time mentioned above, i.e., no more than 4 hours for primigravid women, and no more than 3 hours for women with a history of labor. However, in clinical practice, it is not possible to focus only on the contractions and delivery time, but also on the fetal heart rate and the general condition of the mother. Therefore, the time between the onset of frequent contractions and the delivery of the fetus is not static, but is analyzed on a case-by-case basis, with some individual differences. If the frequency and intensity of contractions are abnormal, or if the fetus is in distress when the uterus is not fully dilated, a cesarean section should be performed according to the situation, and the mother and her family should actively cooperate to avoid risking the life of the fetus and the mother. Usually, when a woman has regular contractions at least once every 10 minutes, she should be admitted to the hospital in time for delivery. With the contractions, the mother will have a corresponding degree of pain, family members should accompany the side, soothe the emotions, adjust breathing, appropriate movement, when the pain is more serious, can lie down to rest, relax and wait for labor.