What does fetal head and arm length mean?

The fetal head-brachial length usually refers to the length from the fetal head to the arm. During pregnancy, X-ray examinations can be done to understand the development of the fetal head and arm.

Through the relationship between the normal value of fetal head-arm length and gestational age, a simple estimate can be made. During the 8th to 11th week of pregnancy, the development of each fetus will not be too different. It is necessary to measure CRL to predict the due date. During pregnancy, expectant mothers will be curious about the shape of the fetus in their abdomen. As the fetus continues to develop in the uterus, they want to understand the shape of the fetus. They can judge by measuring the fetal head-arm length. If there is any developmental abnormality, you need to go to the hospital for further examination to understand your own condition. If it exceeds 11 weeks, it is generally necessary to measure relevant indicators such as femur length and biparietal diameter.

During pregnancy, you need to go to the hospital regularly for prenatal checkups. At the same time, you should choose foods rich in protein and vitamins to enhance your nutrition. You also need to maintain a good attitude and mood to avoid being in a state of tension and anxiety for a long time, which may have a certain impact on the growth and development of the fetus. If any adverse reactions occur during the development of the fetus, you need to go to the hospital for examination in time. You also need to keep warm when going out to avoid cold.