What are the standard uterine height and abdominal circumference during pregnancy?

After pregnancy, women will undergo many examinations, through which they can learn about various data during pregnancy, such as uterine height and abdominal circumference, which are both important data to understand. Generally, the standards of uterine height and abdominal circumference of pregnant women are related to the pregnancy cycle and fetal development, so these numbers will change and are not fixed. Moreover, the weight of the fetus can be estimated based on this data.

1. Standards of Abdominal Circumference for Pregnant Women

The abdominal circumference standards of pregnant women are related to the duration of pregnancy. If a woman is pregnant for about 4 to 5 months, the abdominal circumference standard will be between 76 and 89cm; if pregnant for 6 months, it will be between 80 and 91cm, with a standard value of 85cm; and if pregnant for about 7 to 8 months, the abdominal circumference standard will be between 87 and 99cm.

2. Relationship between Uterine Height and Abdominal Circumference and Fetal Size

The uterine height and abdominal circumference of pregnant women are related to the size and development of the fetus. During early and mid-pregnancy, there is a certain standard for monthly growth, and it is necessary to understand how much each pregnancy week grows. Moreover, by measuring the uterine height and abdominal circumference in the later stages, the weight of the fetus can be estimated. Therefore, during prenatal examinations, uterine height and abdominal circumference should be measured every time to estimate the intrauterine development of the fetus.

3. Standards of Uterine Height

The standards of uterine height include manual measurement and ruler measurement. In hospitals, manual measurement is used for small pregnancy weeks, specifically: at the end of the 12th week, it is 2-3 horizontal fingers above the symphysis pubis; at the end of the 16th week, it is between the umbilicus and symphysis pubis; at the end of the 20th week, it is 18cm; at the end of the 24th week, it is 24cm; at the end of the 28th week, it is 26cm; at the end of the 32nd week, it is 29cm; at the end of the 36th week, it is 32cm; and at the end of the 40th week, it is 33cm. The measurement of uterine height reflects the height between the symphysis pubis and the fundus of the uterus, indicating whether the growth and development of the fetus are in line with the pregnancy week, which is only a general standard.