The location of the induction of labor injection mainly depends on the method of induction of labor, commonly including intra-amniotic injection, extra-amniotic injection, contraction of the uterus to induce labor, etc. 1, intra-amniotic injection: generally from the bottom of the uterus under the 1-2 fingers of the lower abdomen to start puncture the needle, in turn through the abdominal wall and uterine wall into the amniotic cavity, you need to draw back to see whether there is amniotic fluid, if there is amniotic fluid, it is proved that the needle has been into the amniotic cavity, then injected Drugs, drug absorption uterine contraction, prompting fetal discharge; 2, extra-amniotic injection: if the amount of amniotic fluid is insufficient to perform transabdominal amniocentesis, it is recommended that the endocervical injection of drugs, the role of the amniotic sac through the absorption of the situation does not need to be punctured, only need to carry out a vaginal operation; 3, the use of oxytocin to induce labor: through the hands of venous puncture input of oxytocin, to stimulate the uterus to contract. Induction of labor injection at the same time also has the effect of promoting fetal death, induction of labor will deliver a stillborn baby, after the injection to closely observe the abdominal pain contractions and vaginal bleeding. In addition, there are also non-initiated methods of inducing labor, such as water bladder induction and oral medication.