The ovaries are a pair of gonads located in the pelvis and are flat and oval in shape. Their functions are as follows: 1. To produce egg cells and promote follicle discharge. The ovaries are created during the embryonic period and they produce egg cells, which are developed and expelled as the ovaries function well. There are many egg cells in one ovary, but only one develops to maturity. In general, the two ovaries alternate in ovulation.2. Secrete estrogen. Estrogen has the function of maintaining female characteristics, promoting the maturation of reproductive organs, and promoting the thickening of the endometrium.3. Progesterone is secreted. Progesterone promotes the growth of mammary follicles, maintains a stable body temperature during menstruation, and facilitates the secretion of the endometrium to facilitate conception.4. Secrete a small amount of androgens, which together with androgens and progesterone maintain the endocrine balance in the body.