It usually takes 6 to 8 hours for a primiparous woman to open her third to tenth finger, and 3 to 4 hours for a menstruating woman to open her third to tenth finger, but it varies from person to person. Pregnant women have regular contractions that enter the labor process, but before the mouth of the uterus to open three fingers, from regular contractions to the mouth of the uterus dilatation tends to be relatively slow, from the mouth of the uterine cervix to open the three fingers, once the active period after the mouth of the uterus will be opened more quickly, it generally takes about 6 to 8 hours. Menstruating women may be faster from opening three fingers to ten fingers, and some can open to ten fingers in 3 to 4 hours. In some cases, factors such as weak uterine contractions and cephalopelvic disproportion may affect the rate of cervical dilatation, so the time of cervical dilatation needs to be judged on an individual basis. Throughout the labor process, the mother must pay attention to adjusting her mind and body in order to have enough physical strength to deliver, and also pay attention to monitoring the fetal heartbeat.