What is the level of serum human chorionic gonadotropin during pregnancy?

In life, some women have irregular menstruation and ovulation periods, and sometimes they are pregnant without knowing it. We know that in addition to judging whether the menstruation is on time, we can also use early pregnancy test strips to detect whether the woman is pregnant, but this is not absolutely accurate. Sometimes a false positive result may occur, and we need to further test the serum human chorionic villus hormone level. So how much serum human chorionic gonadotropin is required for pregnancy?

Nowadays, too many people don’t understand some medical issues, but if it is related to you, you can still learn about it. After all, it will be of great benefit to you once you have a general understanding of it, especially in the aspect of checking pregnancy. You must know more so that you can see it yourself. So, how much serum human chorionic gonadotropin is indicating pregnancy?

What is the level of serum human chorionic gonadotropin during pregnancy?

The absolute value of serum HCG varies greatly at different stages of pregnancy and between pregnant women. Generally, the blood HCG of non-pregnant women is <100mIU/mL. The serum HCG levels during pregnancy are shown in the table below. In the first three months of pregnancy, HCG levels approximately double every day. For non-pregnant women, urine HCG levels are >5000mIU/mL on the 40th day of pregnancy and >(8-32)×104mIU/mL on the 60th to 70th day of pregnancy.

The examination of HCG is of great significance for the diagnosis of early pregnancy, and has certain value in the diagnosis, differentiation and course observation of pregnancy-related diseases, trophoblastic tumors and other diseases. To diagnose early pregnancy, HCG can rise to greater than 2500mIU/mL 35 to 50 days after pregnancy. It can reach 80,000mIU/mL in 60 to 70 days. The urine HCG level in multiple pregnancies is often higher than that in single pregnancies.

What is the function of serum human chorionic gonadotropin

It has the functions of FSH and LH, maintaining the life of the menstrual corpus luteum and enlarging the menstrual corpus luteum into the corpus luteum of pregnancy. Promotes the aromatization of androgens into estrogens and stimulates the formation of progesterone. Inhibiting the stimulating effect of plant lectins on lymphocytes, human chorionic gonadotropin can be adsorbed on the surface of trophoblast cells to prevent embryonic trophoblast cells from being attacked by maternal lymphocytes.

It has LH-like function, stimulating the fetal testicles to secrete testosterone and promote male sexual differentiation before the fetal pituitary gland secretes LH. It can also promote the development of gonads, stimulate the activity of interstitial cells in the testicles in men, and increase the secretion of male hormones. It is of great significance for the treatment of male patients with combined pituitary defects and can promote the development of secondary sexual characteristics.