Oxytocics are usually given in cases of induced labor, expired pregnancy, and labor induction. 1. Induced labor: If the pregnant woman has fetal malformation, fetal development retardation, placental dysfunction and other circumstances that require the termination of pregnancy can be induced in labor with oxytocic injection. 2. Overdue pregnancy: pregnancy over 42 weeks is overdue pregnancy, easy to increase the risk of obstructed labor and intrauterine hypoxia, so if there is no sign of labor after the due date, you need to go to the hospital for examination, under the guidance of the doctor combined with fetal heart rate monitoring, amniotic fluid and other conditions of the conditions of good conditions to play the oxytocic injection. 3. In labor to induce labor: women in the process of labor contraction weakness, prolonged labor, amniotic fluid has been discharged, the fetus has not yet descended, to rule out fetal distress or pelvic stenosis of special circumstances, can be used to induce labor to enhance the contraction of the contraction needle. It should be noted that women with high blood pressure, heart disease, fetal malposition, pelvic stenosis, etc. cannot use oxytocics.