Pregnant women dizziness is not necessarily normal, early pregnancy due to early pregnancy reaction may appear dizziness, but if dizziness persists or gradually aggravated, also need to be alert to abnormalities. 1, physiological phenomena: early pregnancy due to the increase in the level of estrogen and progesterone in the body, nausea, vomiting, dizziness, drowsiness, fatigue, and other symptoms are normal, generally will gradually ease the disappearance of the, don’t worry about it too much, pay attention to the regular diet 2, lack of sleep, nervousness: poor sleep or emotional tension, it is easy to induce cerebral vasospasm, cerebral blood supply is insufficient to induce dizziness. The change of identity in the early stages of pregnancy makes some pregnant women feel nervous, pay attention to self-regulation, adapt to the new identity as soon as possible, relax yourself, maintain an optimistic state of mind, and alleviate the related symptoms. 3, pathological causes: such as anemia, hypertension, hypoglycemia, etc., when moderate to severe anemia, the nervous system tissue ischemia and hypoxia will appear dizziness. Abnormal elevation of blood pressure induces cerebral vasospasm headache and dizziness, in addition, there are some cervical spondylosis, vestibular dysfunction caused by dizziness. The persistence of dizziness is recommended to consult a doctor in time to clarify the cause of the disease, and then targeted treatment.