Head circumference is one of the important indicators that the fetus is developing normally. However, how is the indicator abnormal and what should the pregnant mother do in this case?
Head circumference is one of the most common indicators of the fetus that is shown on fetal ultrasound results with the abbreviation HC, which stands for Head circumference.
Depending on the pregnancy weeks, the doctor will review the head circumference index as well as other indicators of the fetus to check the normal development of the baby. Detail:
From week 1 to week 4, the fetus is just a very small embryo. The fetal index from 4-7 weeks of mothers should note the length of the buttock and the diameter of the pregnancy bag.
In the 6th week of pregnancy, the diameter of the pregnancy bag can be about 14-25mm.
From 7 weeks of pregnancy, the ultrasound will show the length of the buttocks of the baby.
From 12 weeks onwards, it is possible to determine fetal head circumference, bipolar diameter as well as femur length.
Each fetus has different metrics, for example having a larger head circumference or a shorter thighbone. Often these differences are more or less inherited from the parents.
If the difference is insignificant, within the permissible limits, these indicators are considered to be no abnormality.
This is a worry of many mothers when it comes to antenatal care. Is my baby developing normally? What do indicators such as fetal head circumference tell, especially when they are smaller than normal standards?
According to the doctors, if concluding that the baby's head circumference is small, this is quite a concern. The causes of this condition are difficult to determine, but the most common ones are:
Genetics: small head family
The fetus develops slowly
Genetic abnormalities.
Chromosome abnormalities
Fetal infection
Central nervous system abnormalities
Single ventricle (Holoprosencephaly)
Lissencephaly (Lissencephaly)
Split brain
Agenesis of the corpus callosum
Cranial joint closure early
Endocrine system abnormalities (hypothyroidism, pituitary failure, ...)
First, you need to consult with your antenatal doctor to get directions to perform the necessary tests to find out the exact cause and treatment for the fetus in this condition.
Usually, doctors will perform the following steps:
MRI, also called magnetic resonance imaging (MRI), is a means of providing detailed pictures of the inside of the body. From there, the doctor can detect abnormal structures of the organs and recommend appropriate treatment.
In obstetrics, an MRI of the fetus will provide more information about the baby, in addition to an ultrasound tool, especially in risky pregnancies.
If your baby is at risk for small head circumference then this is one of the ways to closely examine brain structures.
This is a procedure that uses a needle to drain amniotic fluid. This sample is checked for infection or chromosomal abnormalities. However, this is a last resort, as this invasive method can lead to the risk of preterm birth.
In case the test result is normal, the pregnant mother should take care of the pregnancy, increase the nutrition, and monitor the fetal development.
However, it is necessary to understand that many cases of normal chromosomal amniocentesis are still present, but there are still some very small genetic mutations that are currently not available in Vietnamese medical conditions. Therefore, pregnant mothers need to continue to refer to treatment directions from an obstetrician.
See more:
Calculation and factors affecting pregnant belly circumference
How is fetal nose bone length normal?
Does eating durian while breastfeeding affect breast milk taste or cause digestive issues? Find out whether nursing mothers should eat durian.
Learn how to replicate Renée Zellweger’s beautiful makeup from the BAFTAs, featuring useful tips and a list of products for an elegant and luminous look.
Discover the best washing machine brands such as Hitachi, Candy, Midea, Beko, and Whirlpool with our detailed reviews. WebTech360 helps you choose the best washing machine that suits your needs.
Available in the Vietnamese market since 2001, Darling TV is gradually becoming familiar to users. Discover if Darling TV is good and durable, alongside the top 3 models worth buying.
Deciding whether to buy a Hitachi or Samsung refrigerator is challenging, as both brands are synonymous with quality and luxury.
Discover how to effectively use the Toshiba AW-A800SV washing machine control panel with our detailed guide!
WebTech360 provides simple steps for updating software on your Toshiba Smart TV to enhance performance and access new features.
Are longans harmful for pregnant women? Discover safe consumption practices for longan during pregnancy and the potential risks involved.
Discover the trendy men
Learn how to use Skype on your Smart TV TCL for seamless communication. This guide covers installation, login, camera connection, and more.
Learn how to bookmark websites on your Skyworth Smart TV for easy access to your favorite content with WebTech360.
When running a newly purchased refrigerator, you notice the sides heating up, raising concerns about a potential fault. This article from WebTech360 provides insights into this phenomenon.
Discover why buying a Panasonic refrigerator could be the right choice for you. Learn about its advantages, technologies, and energy efficiency.
Discover essential Toshiba washing machine error codes and effective solutions to help you quickly resolve issues for improved performance and longevity.
Learn the steps to tune in to channels on your Smart TV Skyworth for a variety of entertainment options. Find out how with WebTech360!
Does eating durian while breastfeeding affect breast milk taste or cause digestive issues? Find out whether nursing mothers should eat durian.
Learn how to enable and disable subtitles on your Hisense TV for a better viewing experience.
Learn how to clear your recently watched list on Disney Plus. Discover ways to manage your viewing history and get recommendations tailored to your preferences.
Are longans harmful for pregnant women? Discover safe consumption practices for longan during pregnancy and the potential risks involved.
Learn how to remove annoying text overlay in Netflix, experience uninterrupted binge-watching sessions with our easy solutions.
Can pregnant women eat dried squid during pregnancy? Understand the effects on maternal and fetal health from this delicious snack.
Explore the nutritional benefits of sticky rice for breastfeeding mothers, along with guidelines on when and how to consume it safely after childbirth.
Discover how chives leaves can aid baby teething without fever. Learn the uses and preparation methods for effective results.
Can you eat duck after birth? Find out the effects of duck meat on nursing mothers and cesarean essentials.
Discover whether a cesarean mother can eat duck meat. Learn how duck meat affects incision healing and breast milk production in new mothers.
Discover how to naturally make your genitals pink at home with our effective tips and solutions to boost confidence and beauty.
After giving birth, the question of whether to eat vermicelli has become a concern for many breastfeeding mothers. This article provides insights on postpartum nutrition and the benefits of including vermicelli.
Explore the best birth months for Tan Suu 2021 and understand the significance of each month. Good months include January, March, June, and more.
Discover if pregnant women can eat perilla leaves, their benefits, risks, and delicious recipes. Learn more about this herb and its effects during pregnancy.
Understanding the implications of hammocks on pregnant women and their fetuses, including safety concerns and alternative sleep solutions.
