1. Human chorionic gonadotropin (HCG), a hormone secreted by the ovaries, is often used as a test for pregnancy. Normal levels of human chorionic gonadotropin in normal non-pregnant women are within 5 g/L, exceeding 5 g/L should be considered as a possibility of pregnancy.

　　2. Normally, if you are not currently pregnant, your human chorionic gonadotropin should be in the range of 0-5U/L. Generally, after pregnancy, blood HCG examination can be performed, and the value can reach more than 10U/L, and the value will change with the increase of HCG in the body.

　　3. The normal value of serum human chorionic gonadotropin is 0-5 mim /ml. Serum human chorionic gonadotropin is a glycoprotein secreted by placental trophoblast cells and synthesized by syncytiotrophoblast cells. After fertilization, human chorionic gonadotropin enters the mother's blood and increases rapidly until 8 weeks of gestation, then slowly decreases until 18 to 20 weeks of gestation, and then stabilizes. Serum human chorionic gonadotropin elevation has two possibilities: first, pregnancy, including early pregnancy and ectopic pregnancy; Trophoblast cell diseases, including hydatidiform mole and choriocarcinoma.

　　4. Human chorionic gonadotropin starts to rise after pregnancy, and the number will double in the early stage of pregnancy by 48 hours. As long as the number doubles again, it generally means that the embryo has better recovery and normal development. Therefore, in the early stage of pregnancy, in addition to progesterone and estradiol, we see whether HCG doubles, which is still a relatively important indicator. Generally, this number is used to judge the recovery.

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