It is best for infertile couples to visit the doctor at the same time. If it is not the first time, you should bring the results of various tests done before or your medical records in order to treat and save time. The doctor will perform the necessary tests on both men and women according to their condition, some of which can be done on the same day, while others will be done at a later date. Generally, the following tests are required for the female partner. In addition to routine physical examination, ovulation test is usually performed on the female partner to understand ovulation function and determine the best time for IUI; reproductive hormone test can help diagnose polycystic ovaries, premature ovarian failure, hyperprolactinemia, anovulation due to hypogonadotropic hormone, combined with urine LH test is convenient and reliable; a simple and preliminary method to check the patency of fallopian tubes is tubal lysis; immune factors The examination includes sperm-cervical mucus contact test, serum anti-sperm antibody test, anti-ovarian antibody, anti-endometrial antibody and anti-HCG antibody, etc. 1.Tubal patency test to make sure at least one side is patulous. 2.After entering the IUI treatment cycle, gynecological examination of the cleanliness of vaginal discharge and cervical mucus to confirm that there are no infectious diseases in the reproductive tract. 3. Monitor the development of follicles and endometrium: vaginal ultrasound is used to monitor follicles and endometrium directly and accurately. For patients taking ovulation drugs, monitoring should be started on day 10 of the cycle, and for those not taking ovulation drugs (natural cycle), monitoring should be started on day 12 of the cycle. 4. Fasting blood is drawn in the morning before IUI. 5. Urinary LH (luteinizing hormone) is used to measure the time of ovulation. The peak of LH occurs about 24 hours before ovulation. Before artificial insemination, the couple should receive counseling on artificial insemination and undergo health assessment in terms of physiological, psychological and social factors, and the couple should agree and accept the agreement on the implementation of artificial insemination, and the doctor and patient should sign the agreement together and have it notarized. Note: Generally, artificial insemination is performed once in each line before and after ovulation.