If a couple has been living together for more than 1 year and has a normal sex life and still does not get pregnant clinically, it is diagnosed as primary infertility and it is recommended to find the cause. There are still more causes of infertility, such as ovulatory dysfunction, abnormal hormone levels, endometrial abnormalities, submucosal fibroids, tubal incompetence; or there is immune infertility; or there is vaginal inflammation or cervical inflammation. Clinically, abnormal uterine development may cause infertility, so a detailed examination must be done. In clinical practice, once the cause of infertility is found, it is convenient to give treatment. Therefore, it is advisable to have a blood test for sex hormone six, thyroid function and immune infertility on the second or third day of menstruation. Then, according to the results, ovulation monitoring or tubal examination will be done in the clinic.