What is the normal abdominal circumference at 28 weeks of pregnancy?

The growth of the uterus during pregnancy is regular. After the 28th week of pregnancy, the height of the uterus and the abdominal circumference of the pregnant woman should be measured every two weeks. In this way, the development of the fetus can be calculated based on the calculation formula. Based on the measurement results, we observe whether the fetal development is consistent with the gestational age to find out the cause of fetal abnormality. The normal value of abdominal circumference at 28 weeks of pregnancy is 87 cm. For the health of pregnant women and fetuses, prenatal check-ups must be carried out on time.

28 weeks of pregnancy abdominal circumference uterine height standard

1. The enlargement of the uterus during pregnancy is regular, which is manifested as an increase in the base and abdominal circumference. The values ​​of the pregnant mother's uterine height and abdominal circumference during pregnancy can infer the pregnancy period and fetal development. Generally, they are measured once every 4 weeks starting from the 20th week of pregnancy, every 2 weeks from 28 to 35 weeks of pregnancy, and once a week after 36 weeks of pregnancy. 28 weeks of pregnancy: 23.0-28.5CM.

2. There is also a calculation formula: (month × 3) + 7 = -3 < uterine height < 3. These are the standard reference tables for abdominal circumference of normal pregnant women: 5th month of pregnancy, lower limit of abdominal circumference: 76; upper limit of abdominal circumference: 89; standard abdominal circumference: 82; 6th month of pregnancy, lower limit of abdominal circumference: 80; upper limit of abdominal circumference: 91; standard abdominal circumference: 85; 7th month of pregnancy, lower limit of abdominal circumference: 82; upper limit of abdominal circumference: 94; standard abdominal circumference: 87; 8th month of pregnancy, lower limit of abdominal circumference: 84; upper limit of abdominal circumference: 95; standard abdominal circumference: 89; 9th month of pregnancy, lower limit of abdominal circumference: 86; upper limit of abdominal circumference: 98; standard abdominal circumference: 92; 10th month of pregnancy, lower limit of abdominal circumference: 89; upper limit of abdominal circumference: 100; standard abdominal circumference: 94.

3. Method of measuring uterine height: Let the pregnant woman lie flat on the bed after urinating, and use a soft tape measure to measure the distance from the midpoint of the upper edge of the pubic symphysis to the fundus of the uterus. Generally, measurements should be taken every 4 weeks starting from the 20th week of pregnancy; every 2 weeks from the 28th to 35th week of pregnancy; and once a week after the 36th week of pregnancy. The measurement results are plotted on a pregnancy chart to see whether the fetal development is consistent with the gestational age. When measuring the height of the uterine fundus, if it is found to be inconsistent with the gestational age, or too large or too small, the cause should be found. Such as B-ultrasound and other special examinations to check for twins, deformities, stillbirths, too much or too little amniotic fluid, etc.

What is the normal uterine height and abdominal circumference at 28 weeks of pregnancy?

Uterine height refers to the length from the pubic symphysis in the lower abdomen of the pregnant woman to the fundus of the uterus. Abdominal circumference refers to the horizontal circumference of the entire abdomen of a pregnant woman. Abdominal circumference was measured from the 16th week of pregnancy, and uterine height was measured from the 20th week of pregnancy. Uterine height and abdominal circumference are important bases for doctors to assess fetal development. The standard value of uterine height for a pregnant woman at 28 weeks of pregnancy is 26 cm, and the standard value of abdominal circumference is 87 cm.

Precautions during mid-pregnancy

1. Lifestyle habits: In terms of exercise, you can do some light exercise in the morning and evening, such as walking, gymnastics, etc., but you should avoid strenuous exercise and heavy physical labor to avoid adverse effects on the fetus. Maintaining a regular schedule, getting enough sleep and staying energetic is not only beneficial to the development of the fetus, but also helps pregnant women have enough energy to cope with some situations that may arise during pregnancy.

2. Stay away from pets: Expectant mothers should also stay away from pets during the second trimester to avoid toxoplasmosis infection, etc. Otherwise, the fetus may be infected and cause miscarriage, stillbirth, intrauterine growth retardation and fetal malformation.

3. Regular prenatal check-ups: Prenatal check-ups should also be done on time during the second trimester to understand the development of the fetus and the physical condition of the pregnant woman, and to promptly detect possible unexpected situations, such as abnormal fetal position, pregnancy complications, etc., and seek timely treatment to avoid danger.