This paper summarized GUO Zhiqiang’ s experience in treating infertility caused by polycystic ovary syndrome. According to the law of waxing and waning of yin-yang in different periods of menstruation

it is believed that kidney yin deficiency is the root cause of the disease. Phlegm dampness

blood stasis and qi stagnation are the main causes of the disease. It is proposed to promote follicular development mainly by nourishing yin and tonifying the kidney. Warming yang and activating blood circulation promotes the smooth discharge of follicles

and self-made Yubao Decoction（ 育胞汤） was used for treatment

while the methods of eliminating dampness

resolving stasis

and regulating liver were flexibly used

as well as addition and subtraction according to the disease.