Human chorionic gonadotropin, or hCG for short, is a special type of hormone that is made by a woman's body when she is pregnant. It is made by the developing placenta, which is the organ that connects the baby to the mother's uterus.
Think of hCG like a message from the baby to the mother's body that says: "Hey, I'm here! I need some help, please!" This hormone is very important because it tells the mother's body to start making extra hormones, such as estrogen and progesterone, that are needed to help the baby grow and develop.
Doctors use hCG to help them know if a woman is pregnant. This is because hCG is usually only present in a woman's body when she is pregnant. If a woman takes a pregnancy test and it comes back positive, it means that her body has detected hCG and she is most likely pregnant.
In addition to being a sign of pregnancy, hCG can also be used as a treatment for medical conditions. For example, it can be given to men who have low levels of testosterone in their bodies, or to women who are having trouble getting pregnant due to fertility issues.
Overall, while hCG may seem like a small and simple hormone, it plays a big role in helping women have healthy pregnancies and can even be used to treat some medical conditions.