What is the serum human chorionic gonadotropin level indicating pregnancy?
Serum hCG is a glycoprotein hormone produced by trophoblastic cells during pregnancy, serving as a crucial indicator for pregnancy detection. After normal fertilization and the formation of the trophoblast layer, serum hCG begins to be produced, subsequently doubling every 1.7-2 days and peaking at 8-10 weeks of gestation. As the pregnancy progresses, changes in serum hCG levels occur. In the early stages of pregnancy, the concentration of serum hCG in the blood gradually increases, and after a certain period, the serum hCG level rises significantly. While serum hCG levels are a key indicator for pregnancy, variations may exist among individuals. However, attention should be paid to individual differences and potential other factors that may cause changes in serum hCG levels.
