

HCG Injections: About the Hormone, Levels, Uses, Dosage, & Side Effects
Human chorionic gonadotropin, otherwise known as HCG, is a hormone that is most commonly associated with pregnancy. The hormone, which is part of the placenta at later stages, is produced by trophoblast cells and surrounds the growing embryo. This is the official definition, at least. But what is HCG, and