In polycystic ovary syndrome, menstruation may still occur, but in this case it may be disordered, sparse or absent for a long period of time, or only once every 2-3 months or even 6 months. If the diagnosis of polycystic ovary syndrome is clear and the menstruation is as described above, and the corresponding infertility is present, it is important to give active management. To adjust the menstrual cycle, Da-Ying-35 and Metformin can be applied to adjust the ovulatory function of the ovaries. After normal ovulation, menstruation will come more regularly in most cases. In case of infertility, ovulation monitoring and appropriate tests can be followed by ovulation promotion therapy. If the patient still has a strong desire for pregnancy after a series of treatments, she can resort to assisted reproduction techniques.