This view is mainly due to the lack of medical knowledge and one-sided view of the problem in the past.
The older generation thinks that a big ass = a big pelvis means that it is easy to have children. Actually, it's not like this. Hip is composed of pelvis, some attached bone tissue and soft tissue. As we all know, the pelvis is a part of the bone and the supporting tissue of the hip. Soft tissue is fat.
We usually see a big ass, but there are actually two possibilities. First of all, the skeleton is large, that is, the skeleton is relatively wide. Mothers with this skeleton structure are really better at having children. After all, the pelvis is the first threshold for the baby to be born, and the pelvis is wider and the opening space is larger, which is more suitable for the baby to be born.
The other is fatter. Fat is very easy to accumulate on the buttocks. Compared with a little fat on a small belly, fat accumulated on the buttocks is not easy to find. If there is a lot of fat, it is not good news for production. During childbirth, too much fat and soft tissue will interfere with the normal delivery of the baby, which is not conducive to natural delivery.
So having a baby is actually a process involving various sciences. The smooth birth of a child has its own factors, the mother's factors, and of course the doctor's factors. You can't guarantee a smooth delivery just by relying on a big ass.
Many mothers want to know whether their pelvis is wide and whether they can give birth smoothly before giving birth. There is indeed a relatively simple self-test method.
Mothers can stand still, with their legs shoulder-width apart, and their hands slowly groping up and down the waist, and they will touch an arc-shaped bone on both sides of their bodies, called ilium. Touch down this bone until you reach the coccyx, also known as coccyx. This range is the approximate size of the pelvis up and down. As for the left and right size of the pelvis, it is the approximate distance between the two ilia.
Of course, this method is only a rough measurement made by mothers themselves at home. Whether you can give birth naturally depends on the doctor's specific examination and finally come to a conclusion.
1, scientific weight gain during pregnancy. Weight control during pregnancy is a very important aspect. If it increases too much, on the one hand, the baby will grow very big and increase the difficulty of production. On the one hand, too much fat accumulated by the mother herself will also affect the smooth birth of the baby. Generally speaking, the ideal value of weight gain during pregnancy is between 10 kg- 15 K.
2. Take part in more activities before delivery, such as walking, swimming and yoga for pregnant women. Proper exercise can not only increase the physical fitness of the parturient, make her physical strength longer, which is very helpful to the delivery, but also adjust the elasticity of muscles, which is also very helpful to the delivery.
3. Be mentally prepared. Natural childbirth is a kind of nirvana for mothers, and they have to experience unbearable pain during it. Mothers should be mentally prepared in advance. Of course, if you are really afraid of pain, you can also try painless delivery, and the effect is good.
Finally, what do you think of the good-looking ass? I can tell you a story when you gave birth to a baby.
There is a popular saying among the people that "the ass is good for having children", which means that a woman with a big ass is more likely to have children. The bigger the pelvis, the easier it is for the baby to be delivered from the pelvis during natural delivery.
But actually this sentence is not correct.
Whether the labor can be delivered smoothly depends on the width and inclination of the female pelvis, and the outlet of the pelvis should be wide. Some women with big hips have small pelvis, but only because there is more fat in the lower body. Such a body shape will be more likely to cause pregnancy-induced hypertension and dystocia.
Therefore, an important factor of good fertility is the size of pelvis, not the size of ass.
It may be relatively easy for a woman with a large pelvis to give birth, but it is not just the size of the pelvis that matters. Giving birth to a child is a complex project, and productivity, birth canal conditions and fetal condition are also crucial.
1, productivity
During natural delivery, in addition to strong contractions, the abdominal muscles, diaphragm, and levator ani should be added to make the fetus separate from the mother.
2. Birth canal
Does it include pelvis and soft birth canal? No matter how wide the pelvis is, the eloquence in the pelvis is the only channel that the fetus must pass during delivery, but the width, inclination and outlet size of the internal opening of the pelvis cannot be seen through the size of the buttocks, so it needs to be measured by internal examination before delivery.
3, the situation of the fetus
The condition of the fetus, including the size of the fetus and whether the fetal position is normal. If the fetus is too big or the fetal position is not correct, even the pelvic width will not help.
A woman's big ass can prove two things:
1. Estrogen level is normal. Relatively speaking, genes are better and healthier. If the estrogen level of women is low and the hormone level of men is high, one of the characteristics is that the pelvis will develop like men, so girls with good buttocks (not the bigger the buttocks, the better) are more attractive to men. This is why women with good skin and big breasts are more attractive to men.
2. The pelvis is very big. Physiologically speaking, children are more likely to be born at birth.
In fact, I personally think that the first point is more important, because modern medicine can already cope with the second point, and abortion is a way.
If the female sex hormone level is abnormal, it may be accompanied by abnormal thyroid hormone, which is relatively easy to lead to pregnancy difficulties, abortion, abnormal fetal development and other problems. However, modern medicine is very developed. As long as you have enough wealth, complete infertility is still rare.
Of course, so do men. If the male hormone level is abnormal, the morphological development may be close to that of the female, and there may also be a situation of low sperm number and low vitality.
Therefore, the reproductive selection of human society also shows the characteristics of gene selection, which is inherent in human beings and has no essential difference from the animal kingdom.
Originally, we thought it was because of love that we got together with our lovers, but you can't deny that you are more likely to fall in love with beautiful and handsome people. Looking at faces is essentially genetic selection.
In daily life, we often hear the saying that a woman's ass is easy to have children. The bigger her ass, the more she can have children. And this statement is not a day or two, China has this statement since ancient times. Even Fan Bingbing was praised by Jerry Lee as "big ass and good fertility", so this statement is correct?
Actually, a big ass is easy to raise. Depends on what kind of big ass it is. There are three kinds of big ass, two of which are helpful for having children, but 1 kind of big ass is harmful for having children!
The first type: the pelvis is wide, so the pelvis of a human with a big ass can be roughly divided into four types: female pelvis, male pelvis, flat pelvis and ape pelvis. The characteristic of female pelvis is that the transverse diameter of the entrance is larger than the anterior and posterior diameter, which is beneficial to delivery. The pelvis of men is more cohesive than that of apes, and the flat pelvis is flatter, so the buttocks will look smaller. Women with large hips are more likely to have female pelvis and have a greater chance of natural childbirth.
The second type: the fat on men with thin waist and big buttocks is more likely to accumulate in the abdomen, forming a general's belly and a beer belly, while the fat on women is more likely to accumulate in the buttocks due to the effect of estrogen. If the level of female estrogen secretion is high, it will not only increase the accumulation of hip fat, but also reduce the waist-hip ratio, making the waist thinner and the hips bigger. Therefore, to some extent, a small waist and a big ass indicate that the level of estrogen in the body is high and the ovarian function is better, so that women's fertility is stronger.
The third type: because of obesity, because simple obesity has a big ass. With the improvement of modern living standards, more and more people are overnourished and obese. Obesity is not only unhealthy, but also more harmful to pregnant babies. The proportion of anovulatory menstruation, rare menstruation and amenorrhea in obese women is much higher than that in normal women, and the quality of eggs is reduced. If the man is obese, it will be more difficult to get pregnant. At the same time, the proportion of obese women suffering from gestational diabetes, pregnancy-induced hypertension, fatty liver, abortion and other problems during pregnancy has increased significantly, and dystocia is more likely to occur during childbirth.
Therefore, a big ass is easy to bear. Although there is some truth in this sentence, it depends on what kind of ass is big. For a woman with a big ass because she is fat, don't comfort yourself with this sentence. Determined to lose weight is to better prepare for pregnancy!
In the past, my mother-in-law chose a daughter-in-law, not only depending on whether it was suitable or not, but also on whether the girl's ass was round or not, mainly to prepare for having a baby in the future. According to the general traditional concept, a big ass will give birth to a baby.
Experts say: childbirth is a complex subject, which tests the self-confidence of mothers and the clinical experience of doctors. It is impossible to guarantee a smooth delivery only by the big ass of the parturient.
Hip size = external structure of large pelvis.
Hips are covered with bone tissue and pelvic soft tissue: bone tissue is what we often say, and soft tissue is fat. What people see with the naked eye is that the buttocks are big, is it the only passage (pelvic entrance and exit) that the fetus must pass through during childbirth, or is it because of fat hypertrophy? If it is because of fat, it will not help natural childbirth, or even have a negative impact.
Delivery begins in the vagina, and then it should be called "birth canal". The hips are big, and the corresponding pelvis will be big. Pelvis is an important part of the birth canal, and it is also the only way for the fetus to give birth through vagina. Its size and shape directly affect the delivery. When the baby is in the pelvis when he is very young, the uterus where the baby is located will be higher than the pelvis for more than three months, which will accumulate stomach and heart and then enter the pelvis for more than eight months. If the pelvis is large, it will be easier to enter, and other bones that affect fertility, such as pubic bone, sacrum and ilium, will be more suitable for fetal delivery, and the pain of the mother will be less. If the pelvis is small and the fetus can't enter the basin, it will be difficult to give birth.
Because women's pelvis and the plane of each pelvis vary greatly, it is impossible to classify the pelvis rigidly. For practical needs, according to the shape of the pelvic entrance, we can divide the pelvis into:
1 female, that is, round or oval.
Male, heart-shaped or wedge-shaped.
3 kinds of apes, that is, the front and rear oblong. 4 flat, that is, transverse oval, but the front and rear diameter is very short. Of these four types of pelvis, "female type" and "ape type" are more conducive to childbirth. Both "male" and "flat" are not conducive to vaginal delivery. Of course, the shape of the pelvis is invisible to the naked eye, and the idea that a big ass will have children is just speculation.
Pelvis is only an important factor affecting delivery, and other factors such as maternal psychological state, uterine contraction, fetal size and delivery posture are the key. Among them, factors such as labor force and fetal pain are particularly important.
Experts tell you how to measure your pelvis: put your hands on your hips and you can touch some curved bones on both sides of your body, that is, ilium; Conveniently down to the place commonly known as the coccyx is the coccyx; The part below the waist and above the coccyx is the sacrum; Then touch the pubic bone above the perineum; Finally, sit down. When we sit down, we feel that the prominent bone is the ischium. These parts that are contacted above are probably the whole range of the pelvis.
The duration and intensity of intermittent uterine contractions are regular. With the shortening of intermittent contraction time and the extension of contraction duration, the intensity of contraction will continue to increase, and the delivery time of parturient is approaching. Under the action of uterine muscle contraction, the fetal membrane is broken, and the oppressed fetus cannot stay in the uterine cavity, so it has to move slowly to the cervix, and the cervix begins to expand and discharge the fetus.
When I was a child, I often heard the old man say to someone else's new wife, "big ass gives birth to children." So in our hometown, when we help our son on a blind date, we usually see how big the woman's ass is. If the woman has a big ass, the old people will think it is more likely to have a son.
Another meaning of "having a baby with a big ass" is that old people think that a woman with a big ass is easy to have children. And is this the case? Is there a scientific basis for the phrase "big ass gives birth to a baby"?
We know that the pelvis of a woman who gives birth naturally is generally ten centimeters, but a woman with a big ass is not necessarily big. Maybe this woman with a big ass has a small pelvis, but more fat. There are many people in this situation.
If a woman with a big ass is prone to have boys, there is no scientific basis. Because the female sex chromosome is xx, and the male sex chromosome is xy.
If a woman's X egg is combined with a man's X sperm, a girl will be born; If a woman's X chromosome is combined with a man's Y chromosome, a boy will be born. Therefore, it is mainly men who have the final say in having boys and girls.
To sum up, whether a woman is a big ass or little ass, it is possible to have a boy or a girl. No matter whether a woman's ass is big or small, it is possible to give birth naturally. A woman's large pelvis is the primary condition for natural delivery, which has nothing to do with the size of her ass.
If it is easy to understand giving birth to a son, there is no scientific basis.
If it is understood that it is easier to get pregnant, there is no scientific basis.
Only if it is understood that dystocia is relatively difficult, then there is indeed a little scientific basis.
This kind of experience is more valuable to East Asian yellow women who got married early in ancient times than today. Under the background of today's times, this kind of empirical talk is of little significance. Because the present nutritional conditions and medical conditions are completely different from those in ancient times.
Illustration: Some ethnic women's buttocks are extremely plump, which brings special aesthetic feeling, but it does not reduce the rate of dystocia.
Humans are the species with the highest risk of dystocia among mammals, so humans invented delivery technology and caesarean section. And in the tens of thousands of years of cultural heritage, summed up some rough experiences that are easy or not easy to dystocia, among which big ass gives birth to a baby, even if it is a folk experience. Especially for women who were married and had children at the age of 0/4/5 in ancient times, this sentence is really useful. Because the risk of dystocia in women depends on two things:
1, fetal position and size, the bigger the fetus, the easier it is to dystocia, and the malposition of the fetus is also easy to dystocia.
Illustration: Common fetal positions.
Fetal position is not a common problem that leads to dystocia. If the position of the fetus cannot be adjusted by various methods before delivery, caesarean section can only be used in modern times. In addition, adequate nutrition, fetal growth is too large, will also lead to dystocia.
2. Female pelvic size
For women with incomplete development, the risk of giving birth is too great. Only those women with faster pelvic development are more likely to have children smoothly. In adolescence, the difference of development speed will be very obvious in a short time, so the buttocks of girls who develop first will be significantly larger than those of girls who develop later. Although the pelvis is not necessarily large, the development of the pelvis in ancient times could not be measured, especially with the eyes, only the buttocks. When women enter puberty, the fat on the buttocks will also accumulate, and the development of the buttocks will be synchronized with the development of the breasts.
Illustration: pelvic differences between men and women. The biggest feature of human children is the big-headed doll. Humans can give birth to big-headed dolls, thanks to the gradual expansion of female pelvis during evolution. The change of pelvis will also have a certain influence on the shape of buttocks, which itself is also an integral part of female secondary sexual characteristics.
Therefore, what the ancients said: the experience of having a baby with a big ass can actually indirectly judge the degree of development of girls. Most ancient people had corsets, and most East Asian women had small cups. It is difficult to judge the degree of development by looking at the chest, but only indirectly by looking at the bottom.
Illustration: Three common types of fat distribution in women of childbearing age. Among them, the body fat of the left woman is concentrated in the buttocks, which makes the buttocks more plump and beautiful. Many modern women also want to get a plump ass through exercise.
Deep interpretation of common sense
I often hear old people say this, and my ass is good. Is that big ass really helpful for having a baby?
In fact, this sentence has no scientific basis.
The pelvis is closely related to the baby. Women with large pelvis are more likely to have children than women with small pelvis.
Because the pelvis is wider, the descent and delivery of the fetus will be more convenient and smooth. However, a big ass does not necessarily mean a big pelvis. If there is a lot of fat in the ass and the gluteus maximus is developed, it will make the ass look bigger, but such a big ass is not good for production.
Delivery can only be successful if the pelvis is of the right size. So whether it is good or not, we will check before delivery, and the doctor will measure the pelvis, such as the width and inclination of the pelvis and the width of the pelvic outlet, which are invisible in appearance.
Besides the size of pelvis, there are many other factors that affect the delivery of pregnant women.
Health factors can directly affect the difficulty of delivery, and the posture, posture, position and quantity of the fetus in the abdomen will affect the smooth progress of delivery. Generally speaking, the more positive the fetal position, the easier it is to give birth. The fewer the number of fetuses, the smaller the fetal head circumference.
If the pregnant woman is weak or nervous, this situation may lead to the failure of delivery. At this time, caesarean section is needed to ensure the safety of pregnant women and children.
Reasonable weight control can prevent the fetus from being too big, which is not conducive to delivery. The nutritional intake of the fetus comes from the mother. If the fetus develops too fast, exceeding 4000 grams, it will be called "giant baby" in medicine. If you want to give birth to a "giant baby" in a natural way, you will bear certain risks, which is very unfavorable for childbirth.
During pregnancy, besides paying attention to diet, you should also do exercises that pregnant women can do, such as walking, doing exercises and swimming. These exercises are relatively suitable for pregnant women, and the exercise of pregnant women will also stimulate the baby's exercise and promote the development of the baby's nervous system. It can also improve the endurance of pregnant women, speed up blood flow and prepare for natural delivery.
Yes, there has been a saying among the people that "the ass is well raised", so some mother-in-law with feudal ideas always want to choose some girls with big ass as their wives.
In fact, in the final stage of healthy pregnancy, there are often many cases of pregnant women and babies being injured because of poor delivery. Therefore, as far as "good birth" is concerned, the size of the buttocks may have a certain impact on the smooth birth of the fetus. So, is a woman's big ass really good for having children? Let's see if this statement makes sense. First of all, let's take a look at the saying that "women's buttocks are excellent":
A study by the University of Pittsburgh in the United States shows that there is a scientific basis for women's good buttocks. Because their investigation and study found that "the fat of women's buttocks and thighs is the warehouse for building a baby's brain; Because the fat here is rich in docosahexaenoic acid, and docosahexaenoic acid is one of the most important components of the human brain. " Researchers at the University of Pittsburgh also said that during breastfeeding, women's buttocks play a vital role as a nutritional reserve for milk. They also said that they finally explained why women have so much fat-basically accounting for 30% of their body weight, while men's fat only accounts for 5% of their body weight-10-because women lose a lot of fat when breastfeeding, because women need it for giving birth and because the baby's brain needs it. Therefore, the bigger the hips of women, the smarter the children are, which is scientifically based.
So, it's really easy for a woman to have a big ass, and the baby is smart, but it's hard to have a small ass, and the baby is not smart enough? Let's see if there is any scientific truth in the saying that "a woman's ass is easy to raise":
"Big ass" means that the ass is wide enough, but wide enough. It is necessary to distinguish between "fat" and "pelvis". If a woman's "big ass" is caused by a large pelvis, then she thinks that natural delivery is definitely a plus item for fertility-the size of the pelvis is an important factor for natural delivery. You know, if the pelvic outlet is large, and the anterior-posterior diameter is short and the left-right diameter is wide, it will be easier to give birth naturally.
However, if a woman's buttocks are wider, it is caused by obesity, that is, because of the "big buttocks" promoted by body fat, which often does not play a benign role in natural childbirth. Because of the "big ass" caused by obesity, it is not big to see "bone splitting"; On the contrary, the situation of fat buttocks is conducive to fetal delivery, and even causes fetal dystocia.
In fact, childbirth is a very complicated link, and it can't be solved just by the size of the buttocks. Sometimes, a big pelvis doesn't mean you can give birth naturally. So, maybe some women are really good at big-ass delivery, but some women in little ass can still give birth naturally. Therefore, the statement that "the ass is educated" is not certain.
It can be seen that "a woman with a big ass has a good baby" is just a joke and rumor, and there is not much scientific content. Whether the fetus can give birth smoothly is affected by many factors. Natural delivery requires some objective factors, such as delivery posture, pelvic size, uterine contractility, fetal size and maternal psychological factors. To some extent, the size and shape of pelvis really affect the delivery speed and smoothness of pregnant women. Because in the process of delivery, the fetus needs to pass through the soft birth canal composed of the mother's uterus, cervix, vagina and vulva, and pelvis is one of the necessary processes, so other factors including pelvis need close and good cooperation to successfully deliver the fetus.
Therefore, it is the only way for pregnant women to make more efforts to adjust their body and mind to the best condition if they want their babies to give birth smoothly.
There is a folk saying that a good ass existed many years ago, but since which year no historical evidence has been found. It seems that there has been such a plot after watching the TV series. When the matchmaker introduces his daughter-in-law, he will emphasize that the woman has a big ass, and then the mother-in-law happily marries her into the door, as if she could have a room full of children and grandchildren with a big ass. Is there any scientific basis? My answer is no.
There are right and wrong folk sayings, and the society in which they live is different. The right and wrong of the saying is open to question. For example, people say that confinement can't take a bath, because the medical conditions and living conditions in the past were very poor. Many pregnant women got sick after bathing, and the saying that confinement can't take a bath slowly has been passed down. On the contrary, for now, taking a bath during confinement is beneficial to physical recovery.
The ancients said that the ass is big, it should be the pelvis. In the case of poor medical environment in ancient times, there was no caesarean section, only natural delivery, and the mortality rate of natural delivery was very high. The large pelvis was very important for people at that time to have a natural delivery. But now we know that a big ass doesn't mean a big pelvis, it may be all fat.
But for the current medical level, the size of pelvis is only the most suitable way for parturient and the difficulty of delivery. Generally speaking, the pelvic outlet is large and shallow, which is more conducive to the passage of the fetus, but childbirth is affected by many factors, such as productivity, birth canal, fetal size, pregnant women's psychology and so on. So there is no need to care whether the ass is big or small, and the impact on childbirth is not that great.
Personal opinion, welcome to correct me.