Serum chorionic gonadotropin is a hormone secreted by the human body that promotes and maintains normal reproductive function, and can also be used to diagnose early pregnancy or other disorders. The full name of serum chorionic gonadotropin is serum human chorionic gonadotropin, commonly abbreviated as HCG, which is secreted by the trophoblast cells of the placenta. The physiological role of serum chorionic gonadotropin is to promote the maturation and development of the corpus luteum and the gradual transition from menstruation to pregnancy; to protect embryonic tissues from being attacked or phagocytosed by the mother’s immune system; and to maintain and increase the level of progesterone in the body to ensure the normal development of the baby. Serum chorionic gonadotropin is also a gold laboratory indicator for determining early pregnancy in women. If the serum HCG of an age-appropriate woman is higher than 5 IU/L and is in a state of rapid and exponential increase, pregnancy can be determined. Serum chorionic gonadotropin is an important hormone that assists the body in metabolism and maintains the stability of the internal environment; it is commonly used by doctors for pregnancy diagnosis, and also assists in the diagnosis of hyperemesis gravidarum, germ cell tumors, and other diseases. If you feel any discomfort, please go to a regular hospital for consultation.