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Why Are Pregnant Women Prone To Dizziness?



1. Pregnant women prone to dizziness may be the performance of hypoglycemia

Dizziness and dizziness are one of the most common hypoglycemic symptoms of pregnant women, which often occur in the afternoon and night on an empty stomach. In light cases, dizziness and unsteady gait may occur; in severe cases, when standing or walking suddenly, the eyes may become black, blurred, or even faint.

Due to the increase of progesterone in the blood of pregnant women during early pregnancy, pregnancy reactive vomiting occurs. Besides, due to pregnancy reaction and insufficient intake at this time, body consumption is large, often accompanied by hypoglycemia, which can cause hypoglycemia symptoms such as dizziness and dizziness. Especially in sudden stand-up, long-standing, bathing in the bathing pool or in the crowd is more likely to happen.

In the second and third trimester of pregnancy, the placenta gradually secretes more placental lactogen and growth hormone, reaching the peak after 30 weeks of pregnancy. These hormones can resist insulin in the human body. Besides, the adrenal cortical hormone secreted by the pregnant woman can also resist insulin, leading to the decrease of fasting blood glucose, which is reduced from 6.1 in nonpregnancy to less than 5.1, and the renal tubules of the kidney are sucked back The ability to collect blood sugar is decreased, excretion from urine is increased and other reasons can lead to hypoglycemia and dizziness.

2. Neuroendocrine changes after pregnancy

After pregnancy, the autonomic nervous system of pregnant women is out of balance, the motor nerve regulating blood vessels is unstable, and dizziness may occur due to transient cerebral ischemia when the body position changes suddenly.

3. Hypotension is also a cause of dizziness in pregnant women

The causes of dizziness in early pregnancy include a mild decrease in blood pressure and a gradual increase after the second trimester. In the later period, with the enlargement of the uterus, it is easy to compress the abdominal aorta and lead to postural hypotension, which can also lead to dizziness.

4. Dizziness caused by anemia during pregnancy

After pregnancy, to meet the growing needs of the fetus, the blood volume of pregnant women increases, and the blood circulation volume can increase by 20% - 30%, among which the plasma increases by 40%, and the red blood cells increase by about 20%. The blood is diluted accordingly, forming physiological anemia, which makes pregnant women feel dizzy or dazzled when standing.

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