How much does a premature baby weigh at 31 weeks?

Pregnant women are very concerned about the weight of the fetus during the prenatal checkup, because the weight of the fetus can show the health of the fetus, especially in the late pregnancy, because the development of the fetus has been completely finalized during this period, and the number of fetal movements will become less and less at this time. Some women have premature births at 31 weeks of pregnancy, so how much do premature babies at 31 weeks usually weigh?

First, how much does a premature baby weigh at 31 weeks? The lungs and digestive system of a 31-week-old fetus are basically fully developed, the growth of height slows down, and the weight increases rapidly. The fetus is about 28 cm long from head to hips and weighs about 1.60 kg. If the doctor measures the fetal weight to be 10% lower than this weight, it means the fetus is underweight. The fetus has more subcutaneous fat, fewer wrinkles, and looks more like a baby. At this time, the fetus's organs continue to develop and mature, the lungs and gastrointestinal tract are close to maturity, and it can breathe and secrete digestive juices. The amniotic fluid that the fetus drinks is excreted into the amniotic fluid through the bladder, which is to exercise the urination function after birth. There is now about 850 ml of amniotic fluid surrounding the fetus, but as the fetus grows, its movement space in the uterus becomes smaller and smaller, and fetal movements also decrease.

Second, in the 31st week of pregnancy, pregnant mothers can feel that the number of fetal movements has decreased significantly, which is a normal phenomenon. Occasionally finding the fetus moving in the uterus indicates that he is developing normally. The fetus grows rapidly, and the pregnant mother's weight this week will generally increase by 1300-1800 grams compared to last month, and may increase more significantly in the next few weeks. As the fetus grows, the uterus expands, which squeezes the bladder and causes it to contract. This can cause pregnant mothers to go to the bathroom frequently, just like in early pregnancy.

What is the survival rate of premature babies at 31 weeks? In fact, many premature babies are prone to die after birth, but fortunately, the baby has been formed and the body organs have developed. According to big data statistics, the survival rate of premature babies at 31 weeks of pregnancy is 76%. The specific survival rate depends on the child's growth and physical condition. Premature babies like this usually have a relatively high chance of dying after birth. If the child has a weak constitution or has severely underdeveloped organs, they will basically die within 48 hours of birth. If the child survives longer, the survival rate will gradually increase.