Is the small dipole diameter a concern?

This is an automatically translated article.

The article was professionally consulted by BSCK II Pham Thi Tuyet Mai - Department of Obstetrics and Gynecology - Vinmec Hai Phong International General Hospital.

1. What is the biparietal diameter?

Biparietal diameter is an important indicator to help doctors estimate weight, gestational age as well as mark fetal development.
From 13 to 20 weeks is the golden time to measure fetal biparietal diameter. Because from the 26th week, the biparietal diameter can be deviated by up to 3 weeks.

2. Causes of small bicuspid diameter

Normally the biparietal diameter of a newborn baby ranges from 88-100mm.
If this diameter is too large, a cesarean section is an option. But if the ultrasound results are small, the biparietal diameter may mean that the fetus has growth retardation.

Smaller-than-standard biparietal diameter can be due to the following reasons:
Inadequate brain development makes the biparietal diameter small, with this condition when the baby is born, it is easy to encounter neurological sequelae nervous system, underdeveloped brain, physically unable to keep up with the growth momentum, and low resistance to diseases of blood pressure. Small biparietal diameter can also be caused by flat head syndrome. Flat head is a syndrome that causes torticollis (the head is tilted to one side, the chin is tilted to the other) these effects directly affect the skull and make the biparietal diameter smaller than the norm. The cause of this syndrome is the lack of amniotic fluid and the mother's improper nutrition. Microcephaly is the cause of the small biparietal diameter. If the fetus has a small head, but the brain structure is normal, then the mother can rest assured that the baby will still develop in a healthy way. The case of microcephaly due to genetics, brain structural abnormalities, metabolic diseases or environmental influences that cause small biparietal diameter will be a notable case, because it will affect the development of the brain. children's intelligence and senses later. To diagnose whether the fetus has microcephaly syndrome or not, certain conditions must be met. For example, gestational age must be accurately determined, and the technique of measuring head size must be correct and appropriate. Doctors will order an ultrasound and do further tests to know for sure. So don't worry too much, it's important to rest, eat scientifically to help the fetus develop in the best way.

3. Can the small dipole diameter be improved?

The mother's nutrition has a great influence on the brain development of the baby. Therefore, after being diagnosed by ultrasound with small biparietal diameter, mothers need to pay attention to a scientific and reasonable diet. Folic acid should be supplemented during the first 12 weeks of pregnancy, this is a B vitamin that plays an important role in the production of new cells, directly affecting the development of the nervous system. Foods rich in folic acid to help mothers improve the problem of small biparietal diameter are very rich and diverse, including milk, pregnant milk, oranges, broccoli, egg yolks, avocados, potatoes, cereals. In addition, foods such as eggs, liver, poultry, salmon or chocolate also help supplement choline to help maintain the function of brain cells, promote the development of the nervous system to help children learn and remember. good in the future. Mothers should also eat foods rich in DHA such as sardines, salmon, peanuts, almonds to help develop vision and nerve cells.

Thus, small biparietal diameter is an important sign to detect fetal abnormalities. However, pregnant women should not be too worried, follow the doctor's instructions, maintain the best nutrition and rest to improve this condition. The mother should also be very calm and think positively so as not to affect the baby.
Fetal weight by week is a reference measure so that pregnant women can know the development of their baby while in the womb, especially important milestones such as fetal weight at 32 weeks, fetal weight at week. 37... From there, there is a suitable adjustment of living and exercise regimes.
To know exactly how the fetus is developing, pregnant mothers can refer to the video of fetal weight week by week below:


Video: Fetal weight week by week according to WHO standards
Dr Tuyet Mai has more than 30 years of experience in examination and treatment in the field of Obstetrics and Gynecology, especially in lower line surgery, family planning, specialized laparoscopic surgery, handling many heavy and difficult surgeries such as: :
Hysterectomy, hymenectomy Surgery for uterine fibroids, cervical cancer Cervical cancer vaccination Early detection of cervical cancer Cervical electrocautery Examination and treatment of endocrine

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