How big will the belly be at four months pregnant?

Jan 25, 2025 Source: Cainiu Health

Dr. Zhang Lu

Introduction

Under normal circumstances, pregnancy refers to gestation. The standard uterine height for a four-month prenatal checkup is 16-20.5 centimeters, and the abdominal circumference is between 76-89 centimeters. However, the size of the abdomen at four months of pregnancy varies from person to person. As long as fetal development is normal and all indicators are good during prenatal examinations, there is no need to be overly concerned about the appearance and size of the abdomen.

Generally, pregnancy refers to gestation. At four months of gestation, a pregnant woman's abdominal circumference is approximately 75-90 cm, with variations among individuals. Detailed analysis is as follows:

At four months of pregnancy, the fetus has begun to take shape, and its growth and development accelerate. The fetal weight is usually around 110-130 grams, with a body length of approximately 15-17 cm and an abdominal circumference of about 10-12 cm. In women at four months of gestation, the abdomen may appear slightly protruding when viewed from the side. However, in some women with smaller body frames, the abdominal enlargement may not be明显. Additionally, if a woman had a heavier body type before pregnancy, her abdomen may appear more prominent compared to thinner women, as the thickness of abdominal fat can influence the apparent size of the belly.

There are individual variations in the abdominal size at four months of pregnancy, and pregnant women need not be overly concerned about whether the abdominal size is normal. As long as fetal development is normal and all indicators are favorable during prenatal checkups, there is no need to be overly concerned about the appearance and size of the abdomen.

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