Why are some fetuses too large or too small during a pregnancy test? What is the relationship betwee

Fetal development is related to various factors such as genetics, placental function, blood sugar levels, maternal health conditions, and nutrient absorption by pregnant women, which are also the reasons for large or small fetuses.

Fetal development is related to the genetics of the parents, and the size of the fetus is also genetically determined. Because both the father and the mother are tall and short and thin because of the genetic material, which is also passed on to the fetus in the womb. Therefore, the fetus in the womb is large and small, which is related to the size of the parents and will be affected by the genetics of the parents.

The development of the fetus is related to the function of the placenta, if the placenta function in the female uterus is good, the fetus will get more oxygen, more nutrition will make the fetus develop well, and it is easy to have a large fetus, if the placenta function is insufficient, the fetus can not absorb sufficient oxygen and nutrients, which will affect the normal development of the fetus.

The level of blood sugar index of pregnant women will also affect fetal development, because the appropriate sugar in the pregnant woman's body can promote the growth of the fetus in the pregnant woman's body, and too much sugar will make the fetus develop too fast, and it is easy to develop macrosomia, especially when pregnant women have gestational diabetes during pregnancy, it is easy for the fetus to develop into a giant baby. Therefore, pregnant women must control their blood sugar during pregnancy and control their blood sugar within the normal and stable range, so as to prevent abnormal fetal development and avoid the fetus being too large or too small.

If the pregnant woman suffers from hypertension or preeclampsia and preeclampsia will affect the development of the fetus, because the blood circulation in the body of these pregnant women is resisted, the fetus will not absorb sufficient nutrients will develop slowly, resulting in a small fetus. Pregnant women have poor physical fitness, poor absorption of nutrients in food, and failure to absorb sufficient vitamins and proteins and folic acid will lead to malnutrition, and the fetus in the womb will not be able to absorb sufficient nutrients, and the fetus will be small.

In daily life, if a mother is pregnant, she will often go to the hospital for prenatal checkups. But if you hear the doctor say that your fetus is too big or too small during the prenatal checkup, you will feel very nervous, but these are normal phenomena, and many factors will affect the size of the fetus, so if your fetus is too big or too small, you don't have to be too nervous, you just need to find out the reason, and then prescribe the right medicine and adjust it in time. <>

First of all, the size of the fetus is generally related to the size of the pregnant woman, if the body of the pregnant woman is relatively small, then the size of the fetus will be smaller, and the weight will be lighter, and vice versa. The number of fetuses also affects the size of the fetus, and if the number of fetuses is large, the size will be smaller. If the pregnant woman is often malnourished.

Then it will also affect the fetus, which will cause the fetus to be smaller than other fetuses in the same period, and the living habits of pregnant women will affect the size of the fetus. <>

Secondly, the size of the fetus is also related to the function of the placenta, because if the mother's uterus is in good condition of the placenta, the fetus will be heavier and larger, because in this way, the baby will get more oxygen and nutrients, and will grow better. At the same time, the level of blood sugar in the blood will also affect the size of the fetus, and some appropriate amounts of sugar can help the fetus grow. Therefore, if the blood sugar in the mother's body is slightly high, the fetus will grow larger.

Finally, the function of the umbilical cord blood vessels will also affect the size of the fetus, because the function of the umbilical cord is mainly to transport blood and nutrients, if the umbilical cord is a problem, then it will affect the delivery of nutrients, such as if there is a knot, or there are some symptoms of hematoma and water bladder, then the blood delivery and nutrient transmission will be hindered, then the baby needs to grow Some nutrients will be insufficient, affecting the size of the baby.

In fact, this has a certain relationship with genetics, and there are certain reasons for this mother, sometimes malnutrition may also lead to the fetus being small, and some are more nutritious, so good fetal development will lead to a large fetus. The development of the fetus is directly related to the health of the mother.

It may be due to the placenta in the body, because the placenta can also affect the weight of the fetus, as well as the function of the umbilical cord blood vessels, the blood sugar in the blood, if the sugar in the blood is relatively high, the child will grow faster and bigger, but the mother's blood sugar is not too high; The development of the fetus is related to many factors, such as genetic factors or whether the mother has some diseases in her body, the mother's lifestyle habits, and dietary habits.

It may be related to the pregnant mother's own nutritional intake, some babies absorb rich nutrients through the placenta will be a little bigger, and some babies will have a poor nutritional absorption capacity will be smaller, which is a normal phenomenon, if no abnormalities are found during the prenatal examination, it means that the fetus is relatively healthy, and the prenatal examination on time can be.

Of course, as long as pregnant women don't control their diet, they usually don't cause the fetus to be too small. Other factors: fetal growth retardation, fetal dysplasia, placental dysfunction, umbilical cord abnormalities, etc.

<> when my colleague came to work today, she said she was sad. She went to the hospital yesterday for a prenatal check-up and said that the baby was too small for two weeks. Your mother-in-law heard your words and continued to complain about you.

Let me eat more, if the fetus is too small, let me eat more. "If you want to **, wait for the child to be born, now my nephew is important! "My colleagues were worried when they heard the doctor say that.

Then my mother-in-law kept nagging. Makes the mood more irritable. Some pregnant women are open-minded and mistakenly remember the time they visited their aunt, and the actual size of the fetus is smaller than the theoretical size of the fetus in your memory. In addition, the so-called pregnancy months are calculated based on the 28-day menstrual cycle.

If the actual menstrual cycle is longer than this, for example, my classmate has a menstrual period after 45 days. Every time he examined his child, it was smaller than the theoretical data.

Ultrasound data in the first trimester of pregnancy were relatively accurate. If human influence is excluded, the error of B-ultrasound is relatively small. After 28 weeks of pregnancy, growth and fetal development enter a longer period, so it is normal that ultrasound data may differ by two standard deviations.

If it is wrong to calculate the gestational week at the next stage of pregnancy, for example, it is necessary to check the gestational week again when there are indications that the child did not start the pregnancy at the appropriate period. In general, ultrasound data at 7-9 weeks of pregnancy prevail. The gestational age is calculated from the breech diameter of the fetal head to the seventh week of pregnancy, and the error does not exceed 5%, which is the most accurate.

Not long ago, a fan friend wrote a personal letter to Happy Dad saying that she was about five months pregnant. After returning from his last check-up, he started to get upset. After the pregnancy test, the doctor told her that the child's development was not ideal at this stage.

Weight and height can't keep up with the age of the previous month. If a child is born with a low birth weight, the chances of developing certain diseases are also high. Finally, the mothers of fans are advised to pay attention to a balanced diet instead of a partial solar eclipse.

During the pregnancy test, the mother will be more or less told by the doctor that the fetus is big or small, and the expectant mother is very anxious. The size of the fetus has a lot to do with the human body of the pregnant mother. For example, when Bao Ma's diet is matched, insufficient or too much nutrients are also related to parental genetics.

Is there a relationship between a small baby and a pregnant mother? What factors affect the size of the fetus?

The size of the baby is related to the genetic inheritance of the parents, under normal circumstances, one of the parents is slightly fat or both are slightly fat, the probability of fetal genetic inheritance of these genes will be greater, so the baby will be a little bigger, if the parents are very thin then the baby may also be a little smaller. But the size of the fetus is not absolute. As long as the pregnant mother ensures a happy mood, nutritional matching, and regular life during pregnancy, the fetus will develop physically and mentally healthy, even if it is small, there is no need to worry too much.

If the expectant mother drinks alcohol in the early stages of pregnancy, it will cause damage to the environment in the womb and cause a bad impact on fetal development, smoking will cause the body's capillaries to constrict, and the nutrients and O2 transmitted to the baby will also be reduced, inhibiting the healthy growth and development of the child, and may also cause fetal growth retardation. In the daily diet, if too many condiments are used, or high-energy foods are consumed, it will cause damage to the environment in the womb, endanger the growth and development of the fetus, and cause the fetus to be too large or too small under various conditions. Therefore, mothers must maintain the habit of scientific eating in their daily life, and avoid tobacco, alcohol and other items with ingredients or harmful substances.

Pregnant mothers should not only pay attention to their own healthy diet, but also pay attention to the early stage of pregnancy not to overwork, lift heavy objects, often bow their heads, etc. On the premise of ensuring that you have enough rest, you can also do a moderate amount of exercise, such as after meals. Don't be nervous and anxious in the early stages of pregnancy, maintain a normal state of mind, and don't have to fluctuate a lot; At the same time, if the expectant mother is pregnant with twins or the number of fetuses and many other problems, there are also more or less digestion and absorption of nutrients during the baby's growth and development, which will cause the baby to be too big or too small.

If the fetus is small, it has a very big relationship with the pregnant mother, the pregnant mother is a picky eater, does not like to eat, often eats some bad things, irregular work and rest, stays up late, and has poor physical fitness, which will affect the size of the fetus.

Of course, it has an impact, if the pregnant mother's appetite is not very good, or if he eats less, the weight of the fetus will also be small. It is also related to the mood of the pregnant mother.

It may also be related; Whether the mother eats some more nutritious food, whether she pays attention to rest during pregnancy, and the placenta.