Patient's question:
NoDoctor's answer:
Hello, HCG, also known as human chorionic gonadotropin, is a glycoprotein secreted by trophoblast cells of the placenta, consisting of two subunits: α and β. The decline in serum HCG levels after an induced abortion requires a process. Depending on individual constitution, it generally takes 2-4 weeks after the procedure for HCG to become negative. In some cases, it may take 4-8 weeks for the serum HCG to return to a positive result, with its value being less than 20 ng/L.