Cervical dilatation, from the beginning of regular contractions to the opening of the ten fingers that open the whole, known as the first stage of labor, primigravid women generally take 11 to 12 hours, and often 6 to 8 hours for women in labor. Cervical dilatation time is related to the intensity of contractions, cervical ligament, and the degree of descent of the fetal head. Some are very fast, some are slower, some primigravid women even take 15~16 hours to complete the first stage of labor, while some menstruating women are able to complete labor after 1~2 hours. In general, during the process from regular uterine contractions to full opening of the uterus, it is necessary to check the course of labor every 1~2 hours. When slow labor is detected, it is necessary to find out the cause and give treatment in time, such as sedation of uterus contraction, etc. It is recommended that once regular contractions occur, it is necessary to check the course of labor every 1~2 hours. It is recommended that once regular contractions occur, you should go to the hospital in time to complete the labor process under the supervision of doctors and midwives to ensure the safety of mothers and babies.