In the past two weeks, I saw such a topic in the mothers’group, probably as follows:

There is a pregnant mother who has 37 weeks of full-term in a week, and will be on September 1st. So she wants to have a cesarean section after the full-term of fetal treasure, so that her baby can come out early and go to school early in the future.

The mothers in the group immediately boiled the pot.

Mother expressed her support: after staying for so long, it’s just full-term. There’s no difference between 37 weeks and 40 weeks. It’s better to come out early and go to school earlier in the future.

There are also mothers who disagree: not that at 37 weeks, the baby will be born soon. I heard that in the last three weeks, it’s very important that babies grow and develop differently every day.

Another mother asked: Is 37 weeks enough for a month? Isn’t it 39 weeks before full-term?

Everyone knows that the fetus should stay in the mother’s stomach until full-term, full-term babies are healthier and less susceptible to illness than premature babies. So how many weeks of pregnancy is the real full term?

The fetus develops gradually in the maternal body with the increase of gestational weeks, which is an important index for evaluating fetal development. Most fetal organs also gradually mature with the increase of gestational weeks.

Medically, “full-term infant” refers to a newborn born born born at the gestational age of 37-42 weeks (i.e. 37+0-41+6). At this stage, the fetus matures, the development of various organs of the body has been basically complete, and the fetal position is basically fixed. In recent maternity examinations, doctors have begun to pay attention to whether the fetus enters the basin. Once the fetus enters the basin, it is not far from delivery.

The World Health Organization (WHO) defines babies born before 37 weeks as premature babies with a full 37-week fetus, a full-bodied appearance, loud crying after birth, strong sucking ability and good survival.

But that doesn’t mean that babies born after 37 weeks are the best.

37+0~38+6 is called early full-term pregnancy; 39+0~40+6 is full-term pregnancy; 41+0~41+6 is called late full-term pregnancy.

After 37 weeks of pregnancy, the fetus will grow slowly in the mother’s body. For example, the body weight will gradually increase, and the lungs will gradually mature (the lungs are the organ that the fetus matures the latest). But theoretically, the pulmonary development of 37-week-old babies is not very mature. After birth, the process of establishing pulmonary autonomous breathing will be more difficult.

In addition, studies have shown that babies born at 37 weeks are more likely to have complications, such as the risk of breathing difficulties, feeding and temperature control, and to be more susceptible to infection than babies born at 39 weeks. Babies born after 39 weeks also performed better in terms of body weight, sucking and swallowing capacity.

During the 37-39 weeks of pregnancy, the baby’s lungs, liver and brain have undergone an important growth period. Staying in the uterus for two more weeks can help the brain, lungs and liver develop more maturely. The baby stays in the mother’s stomach longer, the body shape will be more dominant, even the cry will be more loud. Babies born at 37 weeks may be slightly smaller and look significantly smaller.

Not really!

Studies have shown that there is no significant difference in the health of fetuses born at 39 or 40 weeks.

However, it should be noted that gestation up to or over 42 weeks is called overdue pregnancy. Overdue pregnancy increases the incidence of adverse outcomes such as fetal distress, meconium aspiration syndrome, premature syndrome, neonatal asphyxia, perinatal death, macrosomia and dystocia, and increases with the prolongation of pregnancy.

Therefore, it is not after the full term of the fetus that the longer the time spent in the stomach, the better. After the expected delivery period, the pregnant mother should pay close attention to the fetal movement. In addition, it should also be noted that unless cesarean section is necessary for medical reasons, pregnant mothers are generally not advised to use any means to carry out cesarean section and induced labor in the baby’s 37 weeks or so.


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