Hyperprolactinemia can affect ovulation, which is regulated by the hypothalamic-pituitary-ovarian axis. The neurotransmitter dopamine, which affects prolactin levels, is in the hypothalamus and the prolactin cells are in the pituitary gland, so it can affect the work of the hypothalamic-pituitary-ovarian axis and affect ovulation. When menstruation has become sparse or even amenorrheic, it is often combined with ovulation disorders. Therefore, some patients may be insensitive to the timing of menstruation, thinking that there is nothing wrong with menstruation once every 3-4 months, and eventually visit the clinic because infertility has occurred and they have been unable to conceive for more than a year after eliminating birth control. After a series of tests, she was found to be suffering from ovulation disorder. When blood was drawn for basal sex hormones, it was found that such patients were suffering from ovulation disorder due to hyperprolactinemia, and it is because hyperprolactinemia patients often suffer from ovulation disorder that it is recommended to see a reproductive endocrinologist or infertility specialist.