Does β-HCG Need to Be Multiplied by 4 to Obtain HCG?

Many women discover their pregnancy after experiencing early pregnancy symptoms. For women with irregular menstrual cycles, in order to detect pregnancy as early as possible, an hCG test is needed. Although women know that the hCG level is the key indicator for pregnancy detection, they may not be aware of the specific numerical threshold that indicates pregnancy. In fact, different hCG levels have different meanings, and they can vary depending on pregnancy, ectopic pregnancy, intrauterine growth retardation, etc. It is important for women to have a better understanding of this. Is β-hCG multiplied by 4 equal to hCG? hCG, or human chorionic gonadotropin, is a glycoprotein secreted by trophoblastic cells of the placenta. Its physiological structure includes α, β, and amino acids. Since α is not conducive to clinical detection, β-hCG is more flexible and stable in blood and urine, and easier to detect. Therefore, clinically, β-hCG is monitored through blood tests to determine the hCG concentration in the body. There is no 4-fold relationship between them. In the non-pregnant state, β-hCG