What is the standard abdominal circumference at 36 weeks?

We all know that when a woman is 36 weeks pregnant, she is not far from the due date. At this time, the woman's movements will be restricted because it is not very convenient to do anything because of the double body. Pregnant mothers will also be nervous when they go for prenatal check-ups because the due date is approaching. If you want to know how big the baby will be when he is born, you can make a preliminary judgment based on the standard value of abdominal circumference. So what is the standard value of abdominal circumference at 36 weeks of pregnancy?

1. What is the standard for abdominal circumference at 36 weeks?

The average abdominal circumference of the fetus at 36 weeks is 29.44±2.83 cm. The average waist circumference increases by 0.8 cm per week. The fastest growth occurs during the 20th to 24th week of pregnancy; after the 34th week of pregnancy, the growth rate of abdominal circumference slows down. If the abdominal circumference measured at 16 weeks of pregnancy is taken as the base number, the average growth value is 21 cm by full term. When growth does not follow numerical values, it often causes worry and confusion for pregnant women. In fact, the growth of abdominal circumference is not exactly the same for each pregnant woman. This is because:

(1) Before pregnancy, everyone’s weight and waist circumference are different.

(2) The increase in abdominal circumference after pregnancy is not only due to the enlargement of the fetus and uterus, but also due to factors related to the pregnant woman herself.

(3) Some pregnant women experience pregnancy reactions and have difficulty eating, and their abdominal circumference does not increase significantly in the early stages. When the reaction disappears, appetite increases.

(4) Some pregnant women gain weight rapidly after pregnancy, and their subcutaneous fat in the abdomen thickens quickly. Not only does their waist circumference increase, but their abdominal circumference also increases faster than that of other people.

(5) Some pregnant women have obvious water and sodium retention, which will cause a significant increase in abdominal circumference.

Therefore, measuring the growth of the uterus and fetus solely by the growth of abdominal circumference is limited and one-sided, and should be combined with other examinations for comprehensive analysis.

2. What to do if the abdominal circumference is not standard

1. If the uterus is too high and the abdominal circumference is too large during the pregnancy check-up, please pay attention to the possibility of edema

The uterine height and abdominal circumference measured by some expectant mothers exceed the uterine height and abdominal circumference standards for pregnant women by a lot. In this case, expectant mothers should pay attention, as long-term excessive uterine height and abdominal circumference can cause edema. Swelling is normal during pregnancy, but it may also be a sign that the expectant mother has gestational diabetes. Therefore, if the expectant mother finds that the uterine height and abdominal circumference exceed the standard for pregnant women, she is advised to go to a professional hospital for a comprehensive examination to ensure the health of the fetus and herself. If she suffers from gestational diabetes, she should seek timely treatment.