What is the standard for biparietal diameter at 39 weeks of pregnancy?

That big moment in life is coming. After ten months of pregnancy and one day of delivery, all the hard waiting will be over. We are about to welcome the arrival of unknown life. You need to be more careful at this time. At 39 weeks of pregnancy, most pregnant mothers should be ready to enter the delivery room. Before giving birth, you will have another pregnancy check-up to check whether the fetus is mature and can come into this world. What is the standard for the biparietal diameter of a 39-week fetus? What should you pay attention to during the 39th week of pregnancy? Let’s learn about it together below.

At 39 weeks of pregnancy, most pregnant mothers will be ready to enter the delivery room. Before giving birth, you will have another pregnancy check-up to check whether the fetus is mature and ready to come into this world. What is the standard for the biparietal diameter of a 39-week fetus? What should you pay attention to during the 39th week of pregnancy? Let’s learn about it together below.

39-week fetal biparietal diameter standard

The standard biparietal diameter of a 39-week fetus should be within the average range of 9.21±0.59cm. Mothers can refer to it. In addition, the following is the biparietal diameter standard for fetuses from 12 to 40 weeks.

Precautions for 39 weeks of pregnancy

1. Key points of diseases during 39 weeks of pregnancy

If pregnant women find themselves with more serious inflammation, such as candidal vaginitis, they do not need to be too nervous and just need to take medication as prescribed by the doctor. Doctors will recommend cesarean section to pregnant women with severe inflammation. During normal delivery, the fetus is easily infected by bacteria when passing through the birth canal, causing thrush and eye inflammation. It is also easy for the mother to have vaginal lacerations and episiotomy wounds that are difficult to heal, and there is a problem of bacterial infection.

2. Key points for nursing care during the 39th week of pregnancy

(1) Signs of labor: Pregnant women may experience lower back pain, swelling in the thigh roots, thigh cramps, lower back pain and other signs of labor. Some even experience difficulty walking and pain in the pubic area. This is because the fetal head descends and compresses the nerves in the pelvis, so there is no need to worry too much.

(2) Conserve your energy: A completely normal childbirth requires many factors, including the physical strength of the pregnant woman. Therefore, pregnant women need to seize the opportunity to eat more and sleep more before delivery to conserve their energy. After delivery, the uterus will have regular contractions. The mother should not shout and scream to waste her energy. Staying calm and following the doctor's instructions will make the delivery smoother.

What is the standard biparietal diameter at 39 weeks of pregnancy? After reading the above, I believe you already know the answer. A good mental state is an important factor affecting childbirth. Fear, psychological burden, and screaming and making a fuss not only make the mother tired and uterine contractions weak, but also make labor force uncoordinated. Therefore, mothers need to maintain an optimistic mental state. At the same time, the mother's ability to withstand stress and courage will be passed on to the baby. This is also the earliest education for the baby's character formation.