The duration of labor is different for each mother. Normally, it takes no more than 24 hours for a primigravida woman to go into labor; for a menstruating woman, it usually takes 7-8 hours, but due to individual differences, the duration of labor may vary. The whole process of labor is called the total labor, which is divided into the first, second and third stages of labor. The first stage of labor is from the beginning of regular contractions to the opening of the uterus, which takes about 11-12 hours for primigravid women and 6-8 hours for experienced women. The second stage of labor is from the opening of the uterus to the delivery of the fetus, which takes about 1-2 hours for primigravid women and about 30 minutes for experienced women. The third stage of labor is from the delivery of the fetus to the delivery of the placenta, which takes 10-15 minutes, not more than 30 minutes. It is recommended that mothers should exercise properly before natural delivery to facilitate labor. If a pregnant woman experiences symptoms such as water breaking or redness, it is recommended that she should seek medical attention in time, and under the guidance of the doctor, complete the relevant examinations and take appropriate treatment measures.