Is it a malformation if the fetus has a large abdominal circumference?

We all know that many doctors measure the height of the uterus and abdominal circumference of pregnant women during prenatal examinations to determine whether the fetus is growing healthily. However, during the examination, doctors will find that some pregnant women have a larger abdominal circumference. Sometimes it may be because the baby is growing too fast, and sometimes it may be because the fetus is malformed. So, does a larger abdominal circumference of the fetus always indicate a malformation?

Fetal abdominal circumference mainly refers to the development of the fetal abdomen. Expectant mothers can determine whether the fetus is developing normally by measuring the size of the fetus's abdominal circumference.

The standard for fetal abdominal circumference is:

Fetal 16 weeks: The average abdominal circumference is 10.32 ± 1.92

Fetal 17 weeks: The average abdominal circumference is 11.49 ± 1.62

Fetal 18 weeks: The average abdominal circumference is 12.41 ± 1.89

Fetal 19 weeks: The average abdominal circumference is 13.59 ± 2.30

Fetal 20 weeks: The average abdominal circumference is 14.80 ± 1.89

Fetal 21 weeks: The average abdominal circumference is 15.62 ± 1.84

Fetal 22 weeks: The average abdominal circumference is 16.70 ± 2.23

Fetal 23 weeks: The average abdominal circumference is 17.90 ± 1.85

Fetal 24 weeks: The average abdominal circumference is 18.74 ± 2.23

Fetal 25 weeks: The average abdominal circumference is 19.64 ± 2.20

Fetal 26 weeks: The average abdominal circumference is 21.62 ± 2.30

Fetal 27 weeks: The average abdominal circumference is 21.81 ± 2.12

The average abdominal circumference of the fetus at 28 weeks is 22.86±2.41

Fetal 29 weeks: average abdominal circumference: 23.71 ± 1.50

Fetal 30 weeks: average abdominal circumference: 24.88 ± 2.03

Fetal 31 weeks: average abdominal circumference: 25.78 ± 2.32

Fetal 32 weeks: average abdominal circumference: 26.20 ± 2.33

Fetal 33 weeks: The average abdominal circumference is 27.78: ± 2.30

Fetal 34 weeks: average abdominal circumference: 27.99 ± 2.55

Fetal 35 weeks: average abdominal circumference: 28.74 ± 2.88

Fetal 36 weeks: average abdominal circumference: 29.44 ± 2.83

Fetal 37 weeks: The average value of abdominal circumference is: 30.14 ± 2017

Fetal 38 weeks: average abdominal circumference: 30.63 ± 2.83

Fetal 39 weeks: average abdominal circumference: 31.34 ± 3.12

Fetal 40 weeks: average abdominal circumference: 31.49 ± 2.79

Some expectant mothers find that the fetus's abdominal circumference is too large or too small. If the fetus's abdominal circumference is too large, it means the fetus is fat, and if the fetus's abdominal circumference is too small, it means the fetus is small. At the same time, prospective parents still need to go to a regular hospital for examination. Prenatal examinations require comprehensive examination results to determine whether the baby is developing normally.