Fetal development standards at 39 weeks of pregnancy
The 39th week of pregnancy is the third trimester. At this time, the fetus has fully developed, the nutrients supplied by the placenta no longer increase, and the physical burden on the pregnant woman becomes heavier. At this time, the average weight of the fetus is about 3.3 kg and the body length is about 50 cm. The following are standards for fetal development at 39 weeks of pregnancy.
The first natural paragraph: changes in head circumference
At 39 weeks of pregnancy, the fetal head circumference is approximately 35.5 cm. At this time, the fetus\’ head has become rounded, the top of the head is slightly protruding, and the bones have become hard. Although the fetal head circumference has almost completed growing, pregnant women still need to pay special attention to whether it will cause dystocia during delivery.
Second Natural Section: Brain and Nervous System
At this time, the fetus\’s brain and nervous system are basically mature. The number of neurons in the cerebral cortex stops increasing over time, but the connections between neurons continue to develop. Therefore, pregnant women should try to avoid collisions, bumps and other stimuli to avoid impact on the fetus.
The third natural section: Lungs and breathing
The fetal lungs are fully mature, and fetal breathing is entirely carried out by the newborn\’s lungs. If a pregnant woman needs a caesarean section for some reason, she needs to pay special attention to controlling the newborn\’s breathing and maintaining body temperature.
Notes
Although the fetus is fully developed at 39 weeks of pregnancy, pregnant women still need to pay special attention to the excessive burden on their bodies.
The first natural paragraph: pay attention to eating healthily
Although pregnant women at 39 weeks of pregnancy are about to give birth, it is still important to maintain good eating habits. Chronic illness, anemia, and even unstable blood sugar can lead to serious complications, so pregnant women should eat a balanced diet, drink plenty of fluids, and limit their intake of unhealthy foods.
The second natural paragraph: maintain moderate exercise
Pregnant women need to maintain moderate exercise even in late pregnancy. Proper exercise can help relieve fatigue and discomfort during pregnancy and facilitate delivery, but excessive exercise needs to be avoided to protect the safety of the fetus as much as possible.
The third natural paragraph: Avoid overtiring pregnant women
In the third trimester of pregnancy, the physical burden of pregnant women becomes heavier and heavier. At this time, pregnant women should reduce their work pressure and avoid overexertion. Excessive fatigue in pregnant women may affect their mood and indirectly affect the fetus.
Summary
The 39th week of pregnancy is the third trimester of pregnancy. At this time, the fetus is fully developed and the burden on the mother\’s body becomes heavier. At this time, the fetal head circumference is approximately 35.5 cm. Although the fetus is fully developed at 39 weeks of pregnancy, it is still very important to maintain a proper diet and exercise and avoid overexertion. Pregnant women should pay close attention to their own health and that of their fetus.
