How long it takes to induce labor with cervical plugs to soften the cervix is not always possible, it can take from hours to tens of hours, and even failure to induce labor is possible. The mode of labor induction needs to be determined by the patient’s cervical condition. A general cervical score of less than 7 is often indicative of an immature cervical condition, which can be treated with cervical placement of a dilatation balloon and vaginal administration of medications. Vaginally administered medications are usually prostaglandin preparations such as the dinoprostenone pessary. Dinoprostenone pessary in placed into the vagina, can be left placed with the band in the vaginal opening, to be contractions up to the standard can be removed in time, so the application of the safer. During labor, there are more reasons affecting the delivery, such as whether the cephalopelvic is proportional or not, whether the fetus is hypoxic or not, and so on. Therefore, even if labor is initiated by oxytocics, it is not certain when labor will occur or whether it can be delivered vaginally.