Dizziness and nausea in late pregnancy may be caused by diet, increased maternal load, gestational hypertension or intrahepatic cholestasis in pregnancy. 1. Diet: If a pregnant woman in late pregnancy overeats or ingests some greasy, spicy and cold stimulating food, it may lead to digestive reactions such as dizziness, nausea and vomiting. 2. Increased load of pregnant women: the load of pregnant women in late pregnancy is getting heavier and heavier, which may lead to transient symptoms such as dizziness, nausea and vomiting; the growing uterus compressing the gastrointestinal tract may also lead to nausea and vomiting and other gastrointestinal reactions. 3. Hypertension in pregnancy: When the blood pressure of pregnant women is high in late pregnancy, symptoms such as dizziness, nausea and vomiting may occur, so we should be alert to the danger of hypertension in pregnancy and severe pre-eclampsia. 4. Intrahepatic cholestasis in pregnancy: it often occurs in the middle and late stages of pregnancy, itchy skin symptoms are more common, a few patients have epigastric discomfort, nausea and vomiting, poor appetite and other symptoms. During pregnancy, pay attention to rest more, at the same time should relax, avoid tension, anxiety, any discomfort should be timely to the hospital, by the doctor to clarify the diagnosis, and cooperate with the doctor to deal with the symptoms.