Ah Fong figure plump, especially the waist and hips rounded, is a typical “rich breasts, fat buttocks good breeding” of the blessed. But I did not expect to seek children for two years without success, the belly is not moving. Afang couple both came to the hospital for examination, the results found that Afang suffers from polycystic ovary syndrome, which is the culprit of her two years of infertility. Polycystic Ovary Syndrome (PCOS) is one of the main factors of infertility in young married women, and it is a neuroendocrine and metabolic disease with complex etiology characterized by follicular developmental disorders, insulin resistance, and hyperandrogenism. It often occurs at the age of 20-35 years, and is often accompanied by scanty menstruation, amenorrhea, hirsutism, and infertility in addition to obesity and weight gain, which is due to the presence of excessive androgens in the body. Under ultrasonography, many small follicles in the ovary can be seen in a special whorled arrangement around the periphery of the ovary. In addition to the typical polycystic features of the ovaries, there is also a combination of no menstruation or abnormal menstruation, hyperandrogenism, and obesity. About 40-60% of women with polycystic ovary syndrome are obese, 50-90% have hirsutism, and 55-75% of them suffer from infertility. Polycystic ovaries are also present in about 20% of women with normal menstruation, but are occasionally mistaken for polycystic ovary syndrome (PCOS) by general practitioners. Therefore, although cystic changes in the ovaries are one of the diagnostic bases for PCOS, they are not suitable for use as the sole basis for diagnosis. Women with irregular periods, obesity, heavy hair and acne should be alerted to the presence of polycystic ovary syndrome. They should go to a specialized reproductive endocrinology clinic for ultrasound, blood sex hormone tests, and insulin resistance tests to make an early diagnosis. It should also be noted that most women with polycystic ovary syndrome (PCOS) are overweight, but one-third of the women with the disease are not overweight for their height. Before a diagnosis of PCOS can be made, it is important to rule out other conditions that may be associated with PCOS. Other conditions that may be confused with PCOS include diabetes and thyroid disease.