What is the normal hcg value at 37 days of pregnancy?

For women, pregnancy is really troublesome. It requires attention from all aspects and needs to be paid attention to at all times. It is especially worrying for women who already have poor physical fitness. The most advanced and accurate method to detect whether you are pregnant is to measure the hCG value. Moreover, the normal hCG value requirements vary depending on the length of pregnancy. So what is the normal hCG value at 37 days of pregnancy?

HCG (human chorionic gonadotropin) is the "pregnancy test" hormone that is familiar and most commonly used by obstetricians and gynecologists. It is composed of glycoproteins of α and β dimers. But the α-subunit is common to all anterior pituitary hormones. The β-subunit is specific to HCG. The complete HCG is produced entirely by the syncytiotrophoblast of the placental chorion. Its main function is to stimulate the corpus luteum, which is beneficial to the continuous secretion of estrogen and progesterone, so as to promote the formation of uterine decidua and make the placenta grow and mature. It is now believed that HCG is produced by trophoblast transitional cells and syncytial cells. It increases rapidly during the first 8 weeks of pregnancy to maintain the pregnancy. After about 8 weeks of pregnancy, HCG gradually decreases until it reaches a relative stability around 20 weeks.

Ultrasound in the early stages of pregnancy cannot determine whether you are pregnant, but now blood HCG can be used to confirm it. Blood HCG is not only highly sensitive, but also can be used for accurate judgment because it is "quantitative" data.

The normal value of blood HCG is <10μg/L, and the normal value of β-HCG is <3.1μg/L.

The absolute values ​​of serum HCG vary greatly at different stages of pregnancy and between pregnant women, that is, they are different from person to person and are not comparable, and can only be compared within themselves. Generally, non-pregnant women’s blood HCG is <100IU/L. During the first 3 months of pregnancy, HCG levels approximately double every 2.2±0.5 days.

Urine-HCG (HCG semi-quantitative method): non-pregnant women <25IU/L, 40 days of pregnancy >5000IU/L, 60-70 days of pregnancy >(8-32)×104IU/L (urine HCG level is highest in the early morning, close to serum level).

Gestational weeks HCG (IU/L)

0.2-1 week 5-50

1-2 weeks 50-500

2-3 weeks 100-5000

3-4 weeks 500-10000

4-5 weeks 1000-50000

5-6 weeks 10,000-100,000

6-8 weeks 15,000-200,000

February-March 10,000-100,000

From the above, it can be seen that this article not only introduces the normal value of hCG at 37 days of pregnancy, but also popularizes a series of knowledge about hCG. It is worth knowing for everyone, especially female compatriots. Pregnant mothers should not only pay attention to this aspect, but also pay attention to other issues, so as to ensure the condition of the fetus in the womb.