What is the reason for short femur and humerus in the fetus?

The nutrition of a woman's body is critical after pregnancy. If the nutrition is not met, it will easily affect the growth and development of the fetus. Short humerus and femur in the fetus is also a common symptom. Generally, there are many reasons for the short humerus and femur of the fetus. This may be due to calcium deficiency, or a symptom caused by incomplete development. There are also certain genetic factors.

What is the reason for short femur and humerus in the fetus?

Causes and measures for short femur length:

1. Measurement errors: When measuring the femur length after 30 weeks of pregnancy, an error of up or down two weeks is allowed. As long as it is within this range, pregnant mothers do not need to worry too much.

2. Fetal maldevelopment: If the femur length measurement is very different from the standard 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, etc., they should go to the hospital for examination in time.

3. Congenital femoral length: Some fetuses have congenital femoral length differences due to genetic factors. Experts say that congenital femur length will affect the height of the baby at birth, but this situation can be changed. Now the baby's acquired nutrition has far exceeded the influence of congenital factors. Therefore, after the baby is born, try to let him drink more milk, supplement more calcium, and strengthen physical exercise, which is very helpful for the baby's height.

4. Calcium deficiency: Calcium deficiency during pregnancy may affect the length of the femur. Pregnant women are advised to supplement calcium and high-quality protein appropriately, and eat more calcium-rich foods in their diet, such as milk, lean meat, bone soup, etc. In addition, pregnant women should get more sun exposure to facilitate calcium absorption.

Biparietal diameter femur length male and female

It is said that if the value of the fetus's biparietal diameter minus the femur length is greater than 2, there is a greater possibility of giving birth to a boy in the future.

There is no scientific basis for judging whether a baby is a boy or a girl based on the difference in biparietal diameter and femur length. Femoral length is an indicator for doctors to observe fetal development and predict the baby's weight.

Moreover, the measured biparietal diameter and femur length data will also be different due to different fetal positions. Therefore, it is inaccurate to determine the gender of the baby based on the biparietal diameter and femur length. If you want to determine the sex of the fetus, you can choose to have an ultrasound examination.

Femur length is just a measurement, and different people measure in different locations, so there will be a little difference. Under normal circumstances, the reason why the femur is shorter is sometimes related to measurement, sometimes to genetic factors, and sometimes to nutrition.