Ovulation promotion means that in clinical practice, after ultrasound and other laboratory tests, it is found that there is no ovulation and pregnancy is needed, so it is necessary to give drugs to make the ovarian follicles grow and expel the eggs, which are commonly used to promote ovulation. During the period of taking ovulation promotion drugs, we must pay attention to the following: 1. go to the hospital regularly for ultrasound monitoring of the follicles, to understand the development of the follicles and whether they have reached a dominant state, and to give injections of human chorionic gonadotropin to promote the rupture of the follicles and expel the eggs. 2. if there are symptoms of ovarian hyperstimulation, such as lower abdominal distension, nausea, vomiting or low urination, we must go to the hospital in time. If you have any symptoms of ovarian hyperstimulation, such as lower abdominal distension, nausea, vomiting or low urination, you should go to the hospital for examination.