Polycystic ovary syndrome is a reproductive endocrine disease that is not cancerous, but can increase the risk of female reproductive tumors such as endometrial cancer and ovarian cancer in the distant future. Polycystic ovary syndrome is a disorder of ovulation with the main manifestations of scanty menstruation, infertility, obesity, hirsutism, acne, and may be combined with abnormal glucose and lipid metabolism. It is common in adolescent and reproductive age women and is the most common factor causing menstrual disorders and infertility. Polycystic ovary syndrome itself is not cancerous, but current treatments can only target the clinical symptoms it causes, adjusting the menstrual cycle or promoting ovulation and fertility. Because it can cause slow follicular development and reduce ovulation, the endometrium remains in a proliferative state and cannot be transformed into a secretory state in time or is regularly exfoliated, thus increasing the risk of endometrial cancer and ovarian cancer in the long term, but it occurs mostly in middle and old age, which should also be taken seriously. In addition, polycystic ovary syndrome can also increase the risk of cardiovascular disease in old age, so women with polycystic ovary syndrome, should have long-term management to improve long-term complications.