Growth and development of the baby in the 40th week

The growth and development of the fetal baby

Now, your baby's top hips are about 38 centimeters long, their whole body is about 48 centimeters long, and they weigh about 3,400 grams. From a clinical medical point of view, the fetus is fully mature and can be born at any time.

The circumference of the fetus's abdomen is slightly larger than that of the head, the proportion of fat is 15% of the body weight, and all the systems in the body have matured. The baby's intestines are piled up with a dark green sticky substance, which is the metabolic waste of the fetal hair and other substances swallowed by the fetus, that is, the fetal stool.

Babies now have more bones than adults with 206. After birth, some bones gradually merge together as they grow. At this time, the baby has more than 70 different reflexes and is ready for a new life outside the womb.

At this time, the amniotic fluid environment in which the fetus is located has also changed, the original amniotic fluid is clear and transparent, and now due to the shedding of villi on the surface of the fetal body and the shedding of fetal fat and other secretions, the amniotic fluid has become somewhat turbid and milky white.

The placenta is gradually degenerating, and the efficiency of transporting nutrients is gradually decreasing until the fetus is delivered to complete its mission.

Most fetuses will be born this week, but only 5% of babies are actually born accurately during the expected date, and it is normal to delay two weeks earlier or two weeks later. However, if there is no sign of labor after two weeks of delay, it is necessary to take measures such as inducing labor to give birth as soon as possible, otherwise the late birth of the fetus will also be dangerous.

Compared to last week, the position and height of the uterus have basically not changed, but the amniotic fluid has decreased a lot.

Mom will feel that the waiting days have become extraordinarily long; Dad will also be restless all day, not knowing when his wife will give birth, everything is in a state of "preparation", and the atmosphere seems a little tense. Let's enjoy this two-person world together, listen to music at home, relax...