Many pregnant mothers turn a blind eye to the fact that they are overweight with the luck of different constitutions and pregnancy. However, doctors generally believe that pregnant women with high pre-pregnancy body mass index should control their weight gain during pregnancy, otherwise the risk of premature delivery will increase by 60%, the rate of dystocia will increase by 1 10%, and the rate of emergency cesarean section will increase by 1.5 times. In recent years, the incidence of macrosomia in China is as high as 7%- 10%, and the rate of cesarean section has remained high in recent years, reaching 50%-60% in many areas. The reason is that pregnant women are overweight. At the same time, overweight pregnant women increase the risk of their own complications. According to statistics, the incidence of gestational diabetes mellitus is 1.5-20 times higher than that of normal pregnant women, and the incidence of pregnancy-induced hypertension is 2-2/kloc-0 times higher.

Eating too much can't strengthen the baby's nutrition. Overweight of pregnant women not only brings problems of pregnancy and delivery, it is worth noting that the incidence of neonatal malformation increases by 35%-80%, the incidence of neural tube defects increases by 1 ~ 3 times, and the incidence of cryptorchidism increases by 1.5 times, which is also harmful to the baby after birth.

1, pregnancy-induced hypertension syndrome

Generally speaking, pregnancy-induced hypertension syndrome caused by overweight pregnant women has clinical manifestations of hypertension, edema and proteinuria, which will develop into eclampsia in severe cases. Pregnancy-induced hypertension is the most likely cause of gestational diabetes, and it is likely to continue to be a diabetic after delivery. Even if gestational diabetes disappears, it may bring lifelong diabetes risk to children.

Fetus and uterus become larger with the increase of pregnancy. If the pregnant woman is overweight in the early stage of pregnancy, and the fetus is large or multiple pregnancies, it will increase the venous pressure in the legs, affect the circulation, hinder the venous return of the lower limbs, aggravate the edema of the lower limbs and form varicose veins.

2. Increase the risk of childbirth

Due to the excessive accumulation of overweight fat in pregnant women, the resistance of birth canal is large, the tissue elasticity is weakened, and muscle weakness is easy to cause uterine atony in pregnant women, which leads to unexpected situations such as uterine atony, massive bleeding and neonatal asphyxia during natural delivery, and dystocia occurs from time to time.

Secondly, because of the accumulation of fat, the abdominal wall is covered with fat. Obstetricians say that the field of vision is often not fully exposed during surgery, which increases the difficulty of taking out the fetus. Even if caesarean section is chosen, the fat tissue is thick and the wound tension is high, and fat liquefaction may occur, which makes it difficult for obese women to heal.

The anesthesiologist said: "It is difficult to find out the spinal structure of obese pregnant women. Anesthesiologists can only rely on experience, relying on the positioning of the cervical spine and the feel of puncture, which is undoubtedly very risky. "

3, affecting fetal development

The increase of sugar in blood makes placental artery harden, which will hinder the normal circulation of blood, and the fetus can't absorb maternal nutrition normally, resulting in fetal distress or developmental delay, which may be a low birth weight newborn. On the contrary, if the fetus eats too much sugar, pregnant women may give birth to huge babies. In medicine, full-term newborns who are overweight are called "macrosomia". According to the scientific definition made in China, a newborn with a birth weight of 4000 grams or more can be called a macrosomia, which will cause difficulties in delivery, easily lead to neonatal birth injury, lead to a high incidence of diabetes in adulthood, and also make fetal fat cells grow rapidly, increasing the probability of obesity in the future.

Therefore, the newborn is underweight or overweight, which extreme will bring bad influence to the child's future growth.