Standard value of biparietal diameter of the fetus at seven months of pregnancy

After the baby is formed in the uterus, the mother can see how big the biparietal diameter of the baby is during examination. The baby's biparietal diameter is determined according to the specific time of pregnancy. However, some mothers may supplement normal nutrition, and the baby's biparietal diameter will be very large. However, if the baby may be malnourished and the biparietal diameter is small, then how much is the biparietal diameter index of the seventh month of pregnancy worth?

The seventh-month fetus is 35 to 38 cm long and weighs 1000 to 1200 grams. The baby's head circumference is 26 cm, the double diameter is about 7 cm, and the head-to-body ratio is close to that of a newborn baby.

The standard for biparietal diameter of a seven-month (28-week) fetus: The mean biparietal diameter of the fetus is 7.24±0.65. The biparietal diameter of the fetus refers to the length of the widest part between the upper and lower sides of the fetus's head, also known as the "great transverse diameter of the head." Also known as BPD, doctors often use it to observe the growth and development of children, determine whether there is cephalopelvic disproportion, and complete delivery of pregnant women.

At full term, it should be 9.3 cm or above. According to general regularity, after the fifth month of pregnancy, it is basically consistent with the pregnancy phase. In other words, the BPD is about 7.0 cm at the 28th week of pregnancy (7th month), about 8.0 cm at the 32nd week of pregnancy (8th month), and so on. After the eighth month of pregnancy, an average increase of about 0.2 cm per week is normal. When the due date cannot be determined based on CRL in the early stage, it is usually predicted based on BPD. After the middle and late stages, it is usually necessary to accurately measure this data when determining the baby's weight.

What changes occur during the seventh month of pregnancy

The baby will grow rapidly with a large amount of fat stored in the subcutaneous tissue. Generally, by the end of this month, the baby's weight reaches 1.35 kg and the fetus is about 40 cm long. The baby's skin color is basically light pink with a smooth surface, and the retina of the eyes has a little light blue. Because the baby's lungs are not fully developed, it is not very obvious, but it can still be fully exerted in the body.

Generally, when pregnant women reach the end of pregnancy, their sleep at night will be affected to a certain extent. Sometimes the baby will go out to make trouble, and sometimes it will appear in the morning. These are all normal situations and parents don’t need to worry. Some pregnant women also experience leg cramps. Experts recommend that during pregnancy, pregnant women must relax their mental state, control their inner restlessness, and try not to touch medicines to avoid affecting the baby.

Daily diet and exercise are very important. If you find that you can't get a good sleep, you can go for a walk before going to bed at night to get the blood flowing, or drink a glass of milk to improve your sleeping habits. Diet and stress from all aspects are the most important reasons.

For different pregnant women, the body's response is different during the pregnancy process. The aspects discussed above are some of the more common characteristics. When everyone encounters different problems, they should be discovered promptly and appropriate ways to change them should be found. Generally speaking, in the late pregnancy, pregnant women's good sleep must be reasonably controlled. Only in a healthy state can the functioning of other body cells be guaranteed.