The disappearance of the cervical canal in primiparous women is usually followed within 15 hours, while in menstrual women the disappearance of the cervical canal basically coincides with the dilation of the cervical os. The disappearance of the cervical canal, which becomes part of the lower uterine segment, is usually preceded by the disappearance of the cervical canal in primiparous women and followed by the dilation of the external cervical opening. In menstruating women, the disappearance of the cervical canal and the dilation of the external cervical opening occur almost simultaneously. The frequency of contractions also depends on the frequency of the contractions. If the interval between contractions is short, the cervical canal will open after it disappears and labor is usually initiated within 15 hours. If the woman is active during pregnancy, the opening of the uterus will be faster. It is recommended that after the disappearance of the cervical canal, the mother must pay close attention to the vital signs and fetal heartbeat, try to relax and actively cooperate with the doctor’s instructions to ensure a smooth delivery.