What is the process of inducing labor?

Many pregnant women are unwilling to have induced labor, because the general reason for using induced labor is mostly due to physical problems of the pregnant woman or the fetus. Induced abortion can also cause physical and psychological harm to pregnant mothers. You can learn about the process of induced labor.

Methods of inducing labor

Induction of labor includes water bag induction, trichosanthes induction, rivanol induction, genkwater induction, and prostaglandin induction.

After 16 weeks of pregnancy, the method of terminating pregnancy due to maternal or fetal reasons is completely different from that of early pregnancy, and is similar to induction of labor during full-term pregnancy. Regular uterine contractions must be induced to cause the cervical canal to disappear and the cervix to dilate. In mid-term pregnancy, it is more difficult to initiate uterine contractions than in full-term pregnancy, and the conditions for cervical dilation are also poor. The pregnancy must be terminated through the following methods:

1. Drugs stimulate uterine contractions. During a normal pregnancy, the progesterone and prostaglandins in the body are in a balanced state, and are not likely to induce uterine contractions. Especially in the second trimester of pregnancy, the balance is more stable, and even the use of general uterine contraction drugs such as oxytocin is difficult to induce effective uterine contractions. Exogenous drugs enhance the dominance of prostaglandins, disrupt this balance, and can cause rhythmic uterine contractions and lead to miscarriage. Exogenous prostaglandins for induction of labor and the increase in endogenous prostaglandins caused by genkwa and rivanol for induction of labor both belong to this type of effect.

2. Drugs reduce the secretion of placental hormones. The drugs used act directly on the trophoblast cells, causing them to degenerate and denature, thereby reducing placental function and the secretion of chorionic gonadotropin and progesterone. After progesterone is inactivated, the inhibition of prostaglandins in the body is released, leading to miscarriage. Radix Trichosanthis, Rivanol and hypertonic saline can all cause necrosis of trophoblast cells.

3. Mechanical stimulation of uterine contraction. It involves a dramatic increase in uterine volume and mechanical stimulation of the cervical canal to induce reflex contractions. The former is when hypertonic saline or other hypertonic solutions are injected into the amniotic cavity to cause a sudden increase in the amount of amniotic fluid. Placing a water bag in the uterus increases intrauterine pressure while also stimulating the cervical canal. Gelatin sticks, bougies, and intrauterine catheters are all mechanical stimulations of uterine contractions.

4. Surgical removal of the fetus. Including abdominal and vaginal cesarean section and forceps curettage.