How big is the belly when pregnant for six months

By the 23rd week of pregnancy, the palace height is about 21 cm - perhaps many people don't quite understand what the palace height refers to. Let me explain that the palace height is the height from the metatarsal bone to the sternum. The top of this Zhoujie Palace is located about one finger horizontally above the belly button. The abdominal uterine height in the sixth month of pregnancy is about 18-23 cm. So how big is the abdomen at six months of pregnancy?

The volume of the uterus before pregnancy is 50 ml, but before the pregnant woman gives birth, the volume increases to 4 liters, and the size also increases from 7 cm in the early pregnancy to 33 cm, truly changing from a small egg to a watermelon. Therefore, many pregnant women will experience a hard and tight stomach.

Why do some people have small bellies while others have fat bellies even though they are both 6 months pregnant? This reason needs to be clarified

＊How much amniotic fluid is there in pregnant women

In the early stages of pregnancy, the amniotic fluid is obtained from the mother's blood and amniotic membrane, but starting in the second trimester, it is mainly composed of fetal urine. The fetus swallows the amniotic fluid and excretes it into the urine, and then repeats the swallowing-excretion process to achieve a balanced state. If the fetus is born with a defect or the amount of amniotic fluid absorbed by the fetus is less than the amount excreted, it will cause polyhydramnios. This Japanese mother's belly was as big as if she was pregnant with triplets. At 40 weeks of pregnancy, her belly was so fat that it looked like a balloon would explode if touched lightly. It turned out that his baby had congenital esophageal atresia, which was why the pregnant woman had so much amniotic fluid.

On the other hand, if the pregnant mother has less amniotic fluid, her abdomen will naturally look smaller than that of a normal pregnant woman.

Baby's weight gain

The growth of the fetus does not necessarily follow the indicators. Some babies have good digestion and absorption, so of course they gain weight faster. If the fetus is more than 2 weeks larger, you need to pay attention, as it may grow into a giant fetus in the future. At this time, the pregnant mother needs to strictly control her diet and avoid eating high-calorie foods. In addition, some fetuses may gain weight slowly, and naturally their abdomens become smaller, because the pregnant mothers do not pay enough attention to diet, eat insufficient nutrition, or the fetuses themselves do not absorb nutrients well.

＊Pregnant women’s body shape

Some pregnant women are thin and have little abdominal fat, so their abdomen naturally looks smaller than that of slightly plump pregnant women. I have always been underweight, so no matter how much I ate when I was pregnant with my son, I just didn't gain much weight, so my belly was smaller than that of an average pregnant woman throughout my pregnancy. In addition, people with large pelvises have smaller abdomens, while people with small pelvises have more obvious belly.