Physiological hyperprolactinemia is a condition in which lactogen increases during breastfeeding or pregnancy, and these are physiological in nature. The manifestations of hyperprolactinemia are: first, overflow of milk. Second, menstrual disorders, amenorrhea, and infertility. How to diagnose? How do I know if I have hyperprolactinemia? Go to the hospital, at any period, menstrual or non-menstrual, and have your blood hormones and blood prolactin checked. At what point in time? Go to the hospital between 7:00-9:00 a.m. and take a 15-minute break before having your blood drawn. When you go to have your blood drawn at rest, your prolactin is relatively stable. This is because prolactin levels are affected by many factors, including emotions, exercise status, medications, and many others. Therefore, it is important to pay a little attention to the time of day when the blood is drawn, because the blood value fluctuates at different times of the day, and around 9:00 am is the best time. If the blood prolactin value is higher than normal, hyperprolactinemia can be diagnosed. There is also infertility, menstrual irregularities and amenorrhea, which are associated. The main cause of hyperprolactinemia is anovulation, which leads to menstrual disorders and cycle disorders. The inability to conceive is due to anovulation. When other diseases are ruled out and only infertility or menstrual disorders are caused by hyperprolactinemia, if the blood value is more than twice or less than four times the value, you can take a little fried malt orally and drink it as tea every day. If the value is still rising, you can use bromocriptine to treat it. After control, you can go to pregnancy and ovulation promotion. Of course, you can go without ovulation promotion, and when the prolactin is controlled to normal, go for ovulation monitoring, and if the follicles can develop on their own, you can have intercourse and try to get pregnant. When you go to the hospital, your doctor will give appropriate instructions on the change of bromocriptine dose to maintain the pregnancy without affecting it, because bromocriptine in high doses can also affect the health of the baby.