The vague pain in the stomach at 36 weeks of pregnancy is likely to be caused by physiological factors, such as pseudo contractions, or of course, pathological factors, such as gastrointestinal inflammation. If the abdominal pain symptoms continue to be unrelieved, you need to go to the hospital in time to check and clarify the causes, and then treat the symptoms. I. Physiological factors: 1. Uterine compression: 36 weeks of pregnancy, the enlarged uterus may constantly press the lower edge of the rib cage, which can cause dull pain in the ribs of pregnant women. This condition generally does not require special treatment, and pregnant women can relieve the pain by lying on their left side; 2, pseudo contractions: at 36 weeks of pregnancy, the enlarged uterus begins to descend, which will increase the pressure on the pelvis, and if overworked, such as walking too far, sitting or standing for a long time, pregnant women will have pseudo contractions, producing the symptom of vague pain in the stomach, but lasting only a few seconds, with intervals of up to several hours, and the abdomen There is no feeling of falling in the abdomen. It is recommended that pregnant women rest in bed, avoid maintaining a posture for a long time, and relax to relieve; 3, preterm labor: 36 weeks of pregnancy, less than 37 weeks, if the stomach vague pain, and the pain is getting heavier, accompanied by abdominal tightness, hardness, and even a little vaginal bleeding and other symptoms, it is likely that preterm labor has occurred, should promptly go to the hospital to do fetal heart monitoring, observe the contractions, and at the same time, obstetric ultrasound examination, check the fetal amniotic fluid, fetal placenta, and the fetus. Check the condition of fetal amniotic fluid, placenta and cervix. Pregnant women should pay attention to rest, cooperate with medical personnel to observe the changes of fetal heart and fetal movement, timely oxygen treatment, try to extend the pregnancy week to the full term of pregnancy, such as the state of poor can also consider early delivery. Pathological factors: 1. Premature labor: If the hidden pain in the stomach has a tendency to gradually increase, and the lower abdominal tearing pain appears in the late stage, and the pregnant woman has a history of hypertension, abdominal trauma, etc., it is likely that the placenta abruptio has occurred, resulting in premature labor, or the pregnant woman placenta previa, which may also lead to pre-mature labor. In such cases, pregnant women usually have symptoms such as fetal descent, irregular contractions and vaginal bleeding, so it is recommended to go to the hospital immediately. 2. Medical and surgical diseases: If pregnant women have a history of medical and surgical diseases, such as gastroenteritis, cholecystitis and other gastrointestinal diseases, or ureteral stones, kidney stones and other urological diseases, they may also cause vague stomach pain, which is usually accompanied by other symptoms, such as loss of appetite, nausea, diarrhea and urinary retention. Diarrhea, urinary retention and other symptoms. If this happens, it is recommended that pregnant women should eat a regular and hygienic diet with soft, easy-to-digest foods, fresh fruits and vegetables, and avoid cold, spicy and stimulating foods. If symptoms persist and cannot be relieved, you should go to the hospital and use medication under the guidance of a doctor. Pregnant women should pay attention to regular maternity checkups, learn more about it on a daily basis, and when abnormalities occur, they should judge calmly and go to a regular hospital to deal with them in time.