There are significant individual differences in how long it takes to deliver after balloon placement, which may take 3-4 hours for more sensitive menstruating women and 7-8 hours for first-time mothers, while most pregnant women have a mature cervix within 24 hours. In the second trimester, if a pregnant woman has severe pregnancy complications that require early termination of labor, or if she is more than 41 weeks pregnant and her cervix is immature, a balloon may also be used to promote cervical maturation. Usually, paroxysmal abdominal pain can occur a few hours after the balloon is inserted, and if there is no response for more than 24 hours, the balloon should be removed to prevent upstream infection. Usually, when a pregnant woman has paroxysmal abdominal pain and the abdominal pain gradually worsens, it indicates the formal entry into labor, and the balloon should be removed in time to closely observe the progress of labor and fetal heart changes. If the balloon is ineffective, the fetus should be induced by intravenous contractions, but the medication should be administered under the close observation of a specialist, and if necessary, the fetus should be removed by cesarean section. Usually, the balloon is used in combination with oxytocin to shorten the labor. After the balloon is placed, the pregnant woman should relax and move around to avoid excessive stress.