The first of these is the fact that the woman’s stomach may be sore in the 8th month of pregnancy, which may be related to physiological contractions, preterm labor, placenta abruptio and digestive system diseases. 1, physiological contractions: physiological contractions will become more and more frequent in late pregnancy, when the pregnant woman will feel a vague pain in her stomach. The occasional physiological contractions may not affect the mother and baby, but the frequent physiological contractions need timely medical attention to avoid adverse consequences; 2, preterm labor: if the abdominal pain is regular, accompanied by vaginal bleeding, suspected of preterm labor, it is recommended to go to the hospital for fetal preservation treatment. During the period of fetal preservation, we should pay attention to bed rest, maintain emotional stability, and pay attention to the cleanliness of the vulva; 3, placenta abruptio: placenta abruptio can appear vaginal bleeding, accompanied by different degrees of abdominal pain. Once diagnosed, if the condition is serious, the pregnancy may need to be terminated, the method of termination depends on the severity of the abruption, the intrauterine condition of the fetus and the opening of the uterus; 4, digestive system diseases: digestive system diseases such as acute gastroenteritis, can also lead to vague pain in the stomach of pregnant women, accompanied by diarrhea, vomiting and other symptoms, can take probiotics or anti-diarrheal drugs under the guidance of the doctor.