The cervix should refer to the opening of the uterus, and it usually takes about 2 to 8 hours for the uterus to open one to three fingers. The exact time required varies from person to person and is mainly related to the condition of the cervix and the mood of the pregnant woman.
In the case of primigravida, because of the cervix is relatively tight, the cervical canal dilatation time is relatively long, at the same time no experience in childbirth will lead to maternal emotions are relatively tense, so the cervical opening from one finger to three fingers may take longer than that of a transient woman, most of the time in about 6 to 8 hours.
In the case of experienced women, because of the relative laxity of the uterine opening and their experience in labor, they have a basic understanding of the labor process, and their emotions will be relatively relaxed, so the uterine opening time is relatively quicker, and the time is mostly in 2 to 4 hours.
The opening of the uterus from one finger to three fingers is called the incubation period, which is the longest stage of labor. Too much mental tension often affects the dilatation of the uterine opening. Therefore, mothers should learn to adjust their emotions and divert their attention to facilitate the progress of labor.