The symptoms of dizziness, nausea and vomiting in the early stage of pregnancy are related to the patient’s early pregnancy reaction, which is caused by physiological problems, because in the early stage of pregnancy, because of the hormonal changes in the body, it will lead to the patient’s pregnancy reaction, which can be manifested as dizziness, nausea and vomiting, especially the patient’s symptoms will be exacerbated when smelling a special odor. Dizziness, nausea and vomiting in the early stages of pregnancy can also be caused by poor sleep, poor mood, emotional anxiety or poor diet, resulting in anemia or high blood pressure. Patients should pay attention to regular medical checkups, check the blood routine, blood pressure monitoring, if the condition is more serious, need to go to the hospital for treatment.