Is the size of the B ultrasound smaller because of short legs?

The growth and development of the fetus touches the heart of every expectant parent. Every time they do a B-ultrasound and see the data in the B-ultrasound report, they start to search frantically on Baidu, such as what does the fetal biparietal diameter mean, what is the normal depth of amniotic fluid in pregnant women, and what to do if the femoral head is short. Generally, as long as the results are within the normal range, there is no need to worry about the baby's developmental abnormalities. If they are not within the normal range, you can do another check.

Fetal FL refers to the fetal femur length, that is, the length of the fetal thigh bone. The femoral head is the bone at the base of the thigh and is the most numerous bone in the human body. B-ultrasound can be used to check the approximate length of the fetal head, which is of great significance for predicting the weight of the fetus. The fetal FL/BPD value = 69% (standard value 71-87%), the warning ratio is slightly low. You should have regular prenatal checkups, eat more nutritious foods, and don't be picky or have a partial diet. So does a short femoral head mean short legs for the baby?

The femoral head is the largest long bone in the body, referring to the thigh bone. So to put it simply, the femur length is the length of the thigh bone. If the fetal femur is relatively short in B-ultrasound examination, it does not mean that the future child will have short legs. After all, acquired nutrition and exercise have a great influence on height, not to mention that B-ultrasound examination also has a certain degree of deviation. You can only know whether the baby has short legs and long legs after the baby is born.

1. Accurate measurement has deviations. The length of the fetus's femur is also related to accurate measurement. Different people have different measurement locations, so there will be some differences in length. Accurately measuring the fetal femur length after 30 weeks of pregnancy allows for a deviation of half a month. As long as it is within this range, expectant mothers do not need to worry too much.

2. The fetus is underdeveloped. The length of the fetal femur is also closely related to the growth and development of the fetus. If the fetal femur length measurement is far from the target value, it is very likely that the fetus is maldeveloped. Pregnant women should monitor the health of their babies and themselves. If they have irregular abdominal pain, spotting during pregnancy, etc., they should go to the hospital for examination in time.

3. Innate genetic inheritance. The fetus's natural genetic inheritance will also affect the length of the fetus's femur, and some fetuses will have congenitally long femoral heads. Experts believe that congenital femoral head length will affect the height of the baby at birth, but this situation can be changed. Nowadays, the baby's acquired nutrition has far exceeded the natural influence. Therefore, after the newborn is born, it is necessary to feed him more milk and supplement more high-quality protein, and increase physical exercise, which is very helpful for the baby's height.

4. Lack of calcium. Calcium deficiency during pregnancy can also affect the length of the fetus's femur. It is recommended that pregnant women supplement high-quality protein and high-quality protein appropriately, and eat more foods containing high-quality protein in their diet, such as milk, lean pork, big bone soup, etc. In addition, pregnant women should get more sun exposure, which is beneficial to the digestion and absorption of calcium.

Pregnant mothers do not need to be overly nervous about the data, especially in the second half of the pregnancy, because the fetus moves a lot in the mother's belly, the fetal posture is different, and the operation of different doctors is different, all of which will cause large numerical errors. Sometimes the fluctuations will be quite large, so when pregnant mothers see that the reported results are different from the standard values, they do not need to be overly anxious.