The ovaries are a very important reproductive organ in the female body and its main functions are reproductive and endocrine. The reproductive function is responsible for the production and discharge of egg cells, while the endocrine function is the secretion of estrogen and progesterone. The ovaries secrete hormones to keep women in good shape, and during pregnancy, they also secrete a large amount of progesterone to ensure the smooth implantation of the embryo and provide sufficient hormonal nutrition for the embryo. Abnormal ovarian function, such as polycystic ovary syndrome and ovarian cysts, can prevent the discharge of egg cells and lead to different degrees of infertility. In order to prevent premature ovarian failure and protect the function of the ovaries, women should be careful not to overexert themselves, not to eat hormone-rich foods, and to pay attention to proper exercise.