“Ten months of pregnancy and one day of labor” should be the biggest and happiest thing for a family. Under normal circumstances, the fetus will gestate in the mother’s abdomen for ten months. Four weeks is a gestational month, the whole pregnancy total of forty weeks, a total of ten gestational months. However, it should also be clear that it is not uncommon for labor to occur two weeks before or after the due date. This means that it is also normal to go into labor at 38 weeks of pregnancy. Generally, after 38 weeks of pregnancy, the fetus is mature enough to be ready for labor. At this time, the fetal length is about 47.5cm, the fetal weight is 3100g, the average value of the biparietal diameter is 9.08±0.59cm, the average value of the abdominal circumference is 30.63±2.83cm, and the length of the femur is 7.20±0.43cm, which means that the weight of the fetus at this week of pregnancy should be more than six pounds. If the placenta has not matured, then the fetus may continue to grow, but 38 weeks of pregnancy is already in the late stages of pregnancy, with the gradual aging of the placenta, it provides the fetus with nutrients is not very sufficient, that is to say, although the fetus grows, but it will not be too obvious, with the usual will be significantly different. Some fetuses in the 38th week of pregnancy to delivery, may grow about half a pound, but this is also with the mother’s factors have a great relationship. Nowadays, living conditions are good, pregnant women are usually more adequate nutrition, the general development of the fetus is the problem of excess nutrition. If after 38 weeks of pregnancy, and then strengthen the nutrition, if the rapid development of the fetus is too, may be caused by fetal weight is too large, thus affecting the normal smooth delivery, this point also needs to pay attention to. During pregnancy, we must ensure that the nutritional needs, in order to facilitate the development of the fetus, but we should also try to avoid the problem of over-nutrition, otherwise it is not only not conducive to the development of the fetus, but also not conducive to labor and delivery as well as the mother’s own health. After the 38th week of pregnancy, the day of delivery is getting closer and closer. The weight of the pregnant woman has increased by about 10.9kg, the height of the uterus is about 30.5cm-38.5cm, and the abdominal circumference is about 89cm-100cm. In the last few weeks of pregnancy, the hands and feet of the pregnant woman will look very swollen, which are normal and will disappear after delivery. It is important to have proper activity during this period as this facilitates labor.