The choice of IVF ovulation promotion medication is to start on the 3rd day of menstruation, first give the follicle growth promoting medication if nafion. At the same time, the follicle development should be tested and when the follicle develops to about 2cm, then the ovulation promoting drug chlortetracycline 5000-10000 IU/L should be given. The eggs will be discharged about 36 hours after the ovulation promoting drug and the eggs need to be retrieved. Before IVF, we need to give down-regulation drugs to adjust the hormone level to the level that can promote ovulation, then give follicle growth and ovulation drugs to make multiple eggs develop and expel at the same time, then give manual egg retrieval and in vitro fertilization to obtain multiple embryos. The embryos are then selected and transferred to the uterine cavity for growth and development, thus helping to increase the success rate of IVF.