Usually around 40 weeks of pregnancy, the fetus will face delivery. The fetus will be born into this world, and by the time it reaches 40 weeks of growth and development, its growth and development status has basically stabilized. So, do you know what is the standard for baby development at 40 weeks of pregnancy? Next, let's learn about it together.
Generally speaking, 40 weeks of pregnancy is the time when the fetus is born, but there are also many fetuses that are born one or two weeks earlier or later. The weight of a full-term fetus (a baby between 37-40 weeks of pregnancy is a full-term fetus) is approximately 2.7-3.3kg, with a body length between 48-56cm and a head circumference of generally around 35cm. At 40 weeks of pregnancy, the baby's skull also becomes relatively hard, the skin is smooth and light red, not as wrinkled as before, the fat is increasing, and all parts appear much fuller. The baby's hair is 2-3cm long, with nails extending beyond the fingertips. All the fuzz covering the fetus has fallen off, except for a small amount on the shoulders and spine. Every part of the fetus has grown a layer of fetal fat, preparing for birth. All major organs, respiratory system, digestive system, etc. have matured and developed, and will be born with the ability to quickly adapt to the external environment after birth.
At 40 weeks, the fetus is born, so the internal organs and nervous system functions of the fetus are already sound, the hand and foot muscles are well-developed, full of vitality, and the development of brain cells is basically finalized. The fetal chest will become more prominent, and due to the special role of the liver in the production of red blood cells, the fetal liver will naturally become larger. Most babies will meet their mothers this week, but this is not absolute. It is normal to meet them three weeks in advance or two weeks later. According to statistics, only 5% of babies can be accurately born at the due date.
The above is the encyclopedia's introduction to the development standards for babies at 40 weeks of gestation. In short, a baby who is 40 weeks pregnant has reached the due date and may start at any time. It is recommended that expectant mothers prepare a labor package in advance at this time. As long as there are signs of labor, they should go to the hospital in a timely manner to wait for delivery. I hope this article can be helpful to everyone.
