The nausea of pregnant women at 37 weeks may be caused by physiological factors, such as improper diet, enlarged uterus, or pathological factors, such as pregnant women suffering from digestive system diseases, liver diseases, anemia, etc. After clear diagnosis, corresponding treatment measures should be taken. I. Physiological factors 1, improper diet: pregnant women consume too much greasy food, or eat unclean food can cause nausea, vomiting. It is recommended that pregnant women arrange their diet reasonably, match meat and vegetables, and do not overeat; 2. Uterus enlargement: the pregnant woman’s uterus enlarges in late pregnancy, and when lying on her back, the uterus will compress the inferior vena cava, resulting in reduced blood return and insufficient blood supply to the brain, causing certain dizziness, nausea and other uncomfortable symptoms. In addition, the enlarged uterus will also compress the stomach, which will also cause pregnant women to lose their appetite, nausea and vomiting. It is recommended that pregnant women adopt a lateral position to reduce discomfort. 3, lack of sleep: severe lack of sleep can also cause mental depression, loss of appetite, nausea and uncomfortable feelings. Therefore, pregnant women should ensure sufficient rest time and wait for the birth of the fetus in a happy mood. Second, pathological factors 1, digestive system diseases: late pregnancy with acute gastroenteritis, cholecystitis, pancreatitis and other gastrointestinal digestive problems can also cause nausea and vomiting in pregnant women. It is recommended that pregnant women go to the hospital for ultrasound and other tests in time for symptomatic treatment; 2. Anemia: anemia is a common complication during pregnancy, especially in late pregnancy, the body’s demand for iron is relatively high, and anemia due to iron deficiency can easily occur; mild anemia is generally asymptomatic, and if anemia is more serious, symptoms such as nausea, dizziness, shortness of breath and weakness will occur. It is recommended that pregnant women take some iron-rich foods, such as animal liver, lean meat and fungus. If necessary, oral ferrous sulfate oral solution can be taken under the guidance of a doctor for supplemental treatment; 3, gestational hypertension: if nausea and dizziness appear in late pregnancy, pregnant women need to be alert to the emergence of gestational hypertension, if measured several times, systolic blood pressure ≥ 140 mmHg and (or) diastolic blood pressure ≥ 90 mmHg, it is recommended to go to the hospital in a timely manner, and under the diagnosis of the doctor to lower the pressure treatment to avoid Eclampsia in the fetus in the uterus; 4. Other: pregnant women with liver diseases in late pregnancy, such as acute fatty liver, hepatitis, or some intracranial diseases, such as brain hemorrhage caused by trauma, may also cause nausea in pregnant women, and it is recommended that pregnant women seek medical attention and treatment as early as possible.