It takes about 10-12 hours from the opening of two fingers to the full opening of the uterus, the exact time depends on the labor process and has individual differences.
From the beginning of regular contractions to the full opening of the uterus is called the first stage of labor, in which the regular contractions to the dilatation of the uterus 4-5 cm is called the latent period, generally not more than 20 hours for primigravida and not more than 14 hours for transient mothers. Thereafter, the first stage of labor enters the active period when the uterine opening is complete, and the rate of dilatation is not less than 0.5 cm/h.
The rate of uterine dilatation is related to the intensity and frequency of contractions, fetal orientation, size of the fetal biparietal diameter, pelvic conditions and other factors. If the duration of labor exceeds a certain period of time, the labor is abnormal, and it is necessary to determine whether it is necessary to induce labor with hysterotonin or terminate the pregnancy by intermediate cesarean section according to the condition of the fetus and the uterine opening.
If any discomfort occurs during pregnancy, you need to actively consult the doctor and follow the doctor’s instructions for reasonable treatment.