If the fetus is mature and there are no abnormalities, it is not recommended to induce labor at 39 weeks of gestation. If the week of pregnancy is accurate and the pregnant woman has no high-risk factors, it is generally recommended to induce labor in hospital at 41 weeks of pregnancy. 1. nipple stimulation method: the pregnant woman can gently stimulate her nipples and areolas with a warm wet towel every morning, noon and night for 1 minute on each side, alternately, which can induce the release of endogenous oxytocin and induce uterine contractions. When a pregnant woman has a contraction, you can pause and stimulate again when the contraction disappears; 2, drug to induce labor method: drug to induce labor mainly using contraction (oxytocin), the right amount of oxytocin can excite the smooth muscle of the uterus, causing contractions of the pregnant woman’s uterus, which generally has little effect on the health of the fetus, but if the oxytocin drip is too fast and too much is given, it can cause tonic or spasmodic uterine contractions, which requires attention. During the second trimester, weekly obstetric examinations should be performed to assess the condition of the fetus and the mother, and attention should be paid to fetal movements.