Progesterone (Prog)

Progesterone is an endogenous steroid and progestogen sex hormone involved in the menstrual cycle, pregnancy, and embryogenesis of humans and other species. It belongs to a group of steroid hormones called progestogens and is the major progestogen in the body.


Progesterone levels vary during a woman's menstrual cycle. The levels start low, then increase after the ovaries release an egg. If you become pregnant, progesterone levels will rise as your body gets ready to support a developing baby. If you do not become pregnant (your egg is not fertilized), your progesterone levels will decrease, and your period will begin.

Progesterone levels in a pregnant woman are about ten times higher than in a woman who is not pregnant. Men also make progesterone but in much smaller amounts. In men, progesterone is made by the adrenal glands and testes.


Progesterone Prog

Types of Progesterone

Different Types of Progesterone

Progesterone Types