Dizziness in mid-pregnancy may be due to anemia, but other diseases cannot be excluded. The main indicators are hemoglobin content, red blood cell count and red blood cell pressure volume. In addition to anemia, it is also necessary to rule out the presence of gestational hypertension. When gestational hypertension occurs in pregnant women, dizziness can be caused by elevated blood pressure, unlike dizziness caused by anemia, the patient does not have the symptom of blackness in front of the eyes, and the main manifestation is dizziness and head swelling. In addition, vestibular peripheral vertigo should be ruled out. Sometimes, poor sleep, fatigue and viral infection can trigger vertigo, and the patient’s dizziness is accompanied by visual rotation and often nausea and vomiting.