1. Ultrasound examination: Bilateral ovarian polycystic enlargement with thickened echogenicity of the peritoneum is seen. More than 12 cystic follicles of 2-7mm in diameter can be seen in one ovary. 2.Sex hormone 6 test: Blood should be drawn on an empty stomach on day 2-4 of the menstrual cycle. If the results of the test are greater than or equal to 3 for luteinizing hormone and follicle stimulating hormone and greater than the upper limit of normal testosterone, the diagnosis of polycystic can be confirmed. 3.Laparoscopy: You can directly see that the ovaries are cystically enlarged bilaterally and the envelope is thickened and grayish white. It is important to emphasize that although there are many methods to diagnose polycystic, the most common one is ultrasound combined with hormone six tests to confirm the diagnosis. On ultrasound examination there are more than 12 small follicles in the ovaries, some women have a polyfollicular form on one side and some have bilateral polycystic ovary-like changes. With the six hormone tests, one or several abnormalities are present. If the two are combined and are determined to be polycystic ovaries, then the diagnosis is usually confirmed. It is important to remind you that symptoms are only one form of presentation, and those with symptoms are not always polycystic ovaries, and those without symptoms are not necessarily not polycystic ovaries.