After a few months of pregnancy, can you determine whether it is a natural delivery or a caesarean section?

For women, the process of pregnancy is hard and happy. It takes about 280 days from pregnancy to delivery, and it will mature in 10. During childbirth? Have a natural birth? It is the most natural way to give birth, but there are also many expectant mothers who cannot give birth naturally because of special circumstances. Let's talk about it next. What about natural delivery and caesarean section? A few months of pregnancy can decide whether to have a natural delivery or a caesarean section, and what factors affect the decision.

After a few months of pregnancy, can you determine whether it is a natural delivery or a caesarean section?

Generally speaking, before 40 weeks of pregnancy, doctors always advise? Try to give birth naturally? As long as everything is normal before delivery, it is a natural delivery; If the expectant mother has indications of caesarean section during pregnancy, the doctor will continue to observe whether the indications of caesarean section are eliminated in the last few weeks of pregnancy. If it still exists, it can only be delivered by caesarean section.

First glance: according to the results of B-ultrasound examination at 38-40 weeks of pregnancy.

As we all know, according to the arrangement of prenatal examination, at 38-40 weeks of pregnancy, expectant mothers will have the last B-ultrasound examination. What is the purpose of this exam? Understand the baby's prenatal maturity to determine whether it is a natural delivery or a caesarean section. , the specific inspection mainly includes the following aspects:

1. Fetal position:

The normal fetal position is occipital anterior position. What if it is? Improper fetal position? It may be breech position, transverse position, occipital posterior position, etc. Abnormal fetal position is prone to dystocia, which has adverse effects on both mother and baby. Fetal position? It is directly related to whether the fetus can give birth smoothly.

If the fetal position is still not correct in the B-ultrasound examination of 38-40 weeks of pregnancy, the probability of caesarean section for primipara is very high, and the parturient can try to give birth naturally, but whether to give birth naturally or cesarean section in the end depends on the doctor's advice and can't decide blindly.

2. Fetal size:

By doing B-ultrasound examination, we can measure the biparietal diameter, head circumference, abdominal circumference, femur length and other data, so as to evaluate the size of the fetus. If the baby is too big (especially the biparietal diameter is too big, such as greater than 10), it is difficult to pass through the birth canal smoothly, and the risk of natural delivery is even greater. In this case, the doctor will recommend considering caesarean section.

A friend of mine insisted on a natural delivery during pregnancy. She had a prenatal examination at the 38th week of pregnancy. After reading the results, the doctor gave her advice on caesarean section, but she still insisted on giving birth naturally until the fetus started. But because the fetus is too big, it does not fall in the middle of life. Finally, emergency caesarean section, the fetus is 8.5 kg. If she had listened to the doctor and decided to have a caesarean section earlier, she would not have to suffer from the second crop.

3. Placental maturity:

Pregnancy 10 months, the placental maturity should reach grade III, that is, complete maturity, and the placental thickness should be between 2.5 and 5. Centimeter. If the placenta is too mature and has begun to age at 38-40 weeks of pregnancy, the doctor will arrange caesarean section and give birth to the fetus in advance.

Because? Placental aging? It means that nutrients and nutrients will no longer be delivered to babies. It is meaningless for the fetus to stay in the mother's stomach, but it will increase the probability of hypoxia.

4. Amniotic fluid:

Amniotic fluid will gradually decrease in the third trimester of pregnancy, with a depth of 3-7cm and an amniotic fluid index of 8- 18cm. If oligohydramnios or turbid amniotic fluid is found, the doctor will give it as appropriate? About the mode of delivery? It is suggested that more serious cases will be caesarean section in advance to end pregnancy.

5. Umbilical cord condition

Umbilical cord around neck? It is a very common phenomenon during pregnancy. In the third trimester, expectant mothers should pay more attention to fetal movement. However, if the umbilical cord is around the neck, and there are fetal malposition and oligohydramnios at the same time, the doctor will also suggest giving birth to the fetus by caesarean section in advance.

Second look: three factors affect whether the delivery can be smooth. Forward cutting?

Even if the B-ultrasound is normal, I will go into the delivery room to prepare for a natural delivery, but if I can't give birth smoothly during the natural delivery, I still want to. Forward cutting? . Among them, there are three factors affecting delivery: birth canal factor, productivity factor and fetal factor. Only when these three factors are well coordinated can expectant mothers give birth smoothly.

1, birth canal factor

In terms of birth canal, the most likely problem is the expectant mother's pelvis, which will continue to relax after pregnancy, which is conducive to the delivery of the final fetus, but the premise must be? Is the shape of the pelvis normal, and does the minimum transverse diameter of the pelvis allow the fetal head to pass (that is, the transverse diameter is greater than the biparietal diameter of the fetus)? So that the fetus can give birth smoothly. If the pelvic conditions still can't meet the requirements at the last examination, you can only give up natural delivery and consider caesarean section.

Therefore, in the 32nd and 38th weeks of pregnancy, pelvic measurements will be performed respectively. However, there are also many hospitals that do not do pelvic measurements, but only check whether the fetus is in the basin. Because the intra-pelvic measurement is complicated, it is necessary for the expectant mother to measure the width of each side of the pelvis through her vagina in a relaxed state.

2. Productivity factors

So-called? Productivity? That is, the power that expectant mothers use to get the fetus out during childbirth. As we all know, giving birth to a mother is very tiring, so in the process of giving birth, doctors are most afraid of yelling at the expectant mother, because it is very tiring and it is in? Waste of energy? When you really need to exert yourself, the expectant mother can't exert herself, that is, the productivity is affected.

In addition, if the expectant mother is undernourished and does little exercise during pregnancy, the abdominal wall muscles will relax and the pelvic muscles will be tense, which may not be able to give birth naturally.

3. Fetal factors

As mentioned above, there are also difficulties in natural delivery, such as abnormal fetal position, serious umbilical cord around the neck, and overweight fetus. Doctors usually make suggestions on the delivery mode of mothers through the results of prenatal examination at 38-40 weeks of pregnancy. But some expectant mothers will continue to work hard? Just want to try a natural birth first? In the process of persistence, when you finally encounter difficulties and can't continue to deliver naturally, you can only turn to the paragraph.

Third look: evidence of caesarean section, are these situations needed? Caesarean section?

1. Pregnant

If the expectant mother has these conditions, caesarean section is necessary, and don't blindly insist on giving birth. After all, it will directly affect the safety of yourself and the fetus.

Improper fetal position, such as transverse position and breech position;

Placenta previa, placental abruption and threatened uterine rupture;

The first child was delivered by caesarean section with an interval of less than 2 years;

Older women, high-risk women and women with pregnancy complications;

The first child was delivered by caesarean section because of pelvic stenosis;

Delayed labor, abnormal birth canal, uterine atony and ineffective treatment.

2. Fetal aspect

Some conditions of the fetus will also affect the mode of delivery, such as fetal oversize, twins, multiple births, intrauterine hypoxia, umbilical cord too tight around the neck and so on. If these circumstances exist, the doctor will also recommend caesarean section, and the expectant mother will directly follow the doctor's arrangement.

Therefore, based on the analysis of these aspects, the mode of delivery can be determined at 38-40 weeks of pregnancy, but whether the delivery can be successful depends on the specific situation at that time. Generally speaking, 90% of expectant mothers who decide to give birth naturally can give birth smoothly, and only a small number of expectant mothers will turn to cesarean section because of special circumstances.