The article was consulted by Dr. Ngo Thi Uyen, Obstetrics and Gynecology Department – Share99 Nha Trang International Health Hub
HCG hormones are secreted by the placenta during pregnancy. The hCG levels in the blood of the pregnant woman vary over the weeks of gestation with a huge difference in the lowest and highest concentrations. However, the gradual increase in concentration and then gradually decreasing and starting to slow down also occurs at both the highest and lowest levels. This shows that hCG concentration does not matter whether it is high or low, but just whether the concentration increases or not, whether it decreases and slows down or not.
1. Role of HCG beta levels and pregnancy
HCG stands for the hormone Chorionic gonadotropin in the human body and is produced during pregnancy. HCG is secreted by the trophoblast cells of each other's cakes immediately after fertilization of the eggs. Rapidly increasing serum hCG levels after conception make it a signal for the diagnosis of pregnancy during menstruation and monitoring of gestational age ((monitoring the growth of pregnancy in the first weeks of pregnancy).
HCG appears to maintain the royal family. It allows the synthesis of progesterone and estrogen and endometrial support is an important indicator of pregnancy. Beta hCG is tested through the mother's blood test for about 8-9 days after ovulation.
2. At what stage does hCG beta peak in pregnancy?
Beta -hCG monitoring table based on gestational age (from the first day of the last period):
Gestational age |
Beta-hCG concentration |
Gestational age |
Beta-hCG concentration |
3 weeks |
5-50 mIU/ml |
9-12 weeks |
25,700-288,000 mIU/ml |
4 weeks |
5-426 mIU/ml |
13-16 weeks |
13,300-254,000 mIU/ml |
5 weeks |
18-7,340 mIU/ml |
17-24 weeks |
4,060-165,400 mIU/ml |
6 weeks |
1,080-56,500 mIU/ml |
From week 25 to date of birth |
3,640-117,000 mIU/ml |
7-8 weeks |
7,650-229,000 mIU/ml |
4-6 weeks after birth |
<5 mIU/ml |
2.1 Low hCG concentration
- Incorrect calculation of gestational age
- Miscarriage or pregnancy stops developing
- Extra-intra-uterus pregnancy
2.2 High hCG concentration
- Multiple pregnancies
- Egg pregnancy
- Beta-hCG rise accompanied by AFP index could cause Down syndrome
HCG concentrations reach a peak of about 8-10 weeks of pregnancy. From the 10th week er until the late stages of pregnancy, the placenta excretes hCG instead of the cultured fit to maintain the life and development of the pregnancy, the monocytes of vegetable hair decrease, the cultured hepcyst layer also decreases and becomes thin due to the decrease in hCG secretion and hCG is no longer in the mother's blood for 4-6 weeks after birth.
The HCG beta test only helps to determine pregnancy, monitor the development of the fetus through the development of each other's cakes, but does not reflect at all about the sex, weight, intelligence of the pregnancy. Therefore, mothers should not be too worried about HCG beta levels, it is not recommended to monitor the test continuously, while the health of the baby can also be evaluated through other indicators, other means. Accordingly, what needs to be done is that women should take care of themselves, have regular pregnancy examinations, combine eating, exercising and resting properly, preparing to welcome their children.
Share99 International Health Hub offers a full maternity care program for women from the very beginning of pregnancy from the first months with a full range of pregnancy examinations, 3D ultrasounds, 4D routines and routine tests to ensure the mother is always healthy and the fetus develops comprehensively. Maternity will no longer be alone when entering labor because having a companion helps the process of childbirth always bring peace of mind and happiness.
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Nơi sinh sống
Hà Nội
Hanoi
Hồ Chí Minh
Ho Chi Minh City
Phú Quốc
Phu Quoc
Nha Trang
Nha Trang
Hạ Long
Ha Long
Hải Phòng
Hai Phong
Đà Nẵng
Da Nang
Nước ngoài
- Does a blood test know you're pregnant?
- What beta hcg testing means in egg-eating diagnosis
- Diagnosis of intra-uterus pregnancy