If the follicles are still developing and the endometrium is synchronized, the doctor will inform the patient of the next visit or the time of intercourse; if the follicles are slow to develop or the endometrium is thin, the patient will usually be adjusted with ovulation-promoting drugs or estrogen; if the endometrium is found to be unevenly echogenic, the patient will be advised to cancel the monitoring and change to hysteroscopy to rule out polyps and other abnormalities. Irregular menstruation is usually suggestive of anovulation and requires measurement of reproductive endocrine on the 3rd day of menstruation. If endocrine is normal, ovulation will be promoted on day 5 of menstruation; if endocrine is abnormal, ovulation will usually need to be adjusted for 1 to 3 months before ovulation is promoted. Patients with polycystic ovary syndrome usually need to adjust for 2~3 months and start ovulation promotion immediately after the endocrine adjustment to the normal range, and should not wait for 1~2 months after stopping the medication, then the endocrine abnormality will occur again and the previous work will be finished.