There is no definite number of injections needed for IVF, and the medication needs to be considered according to the hormone levels in each patient’s body, as well as the follicle development and ovulation protocol. Before IVF, eggs need to be retrieved from the ovaries. In order to promote the development of multiple follicles at the same time, it is necessary to use down-regulation drugs, which are administered for about 20 days to regulate the hormone levels in the body to avoid premature maturation of the follicles and ovulation. After the follicles have matured, the ovulatory drug human chorionic gonadotropin is injected to promote the expulsion of the follicles, followed by surgical egg retrieval and in vitro fertilization. At the end of a cycle, if the egg retrieval is successful, about 30 injections are needed. If the egg retrieval is not successful this month, and the egg retrieval continues in the next menstrual cycle, the injections need to be continued, and the above mentioned is the long-acting regimen. If you are using the short-acting protocol for ovulation retrieval, you will need to inject for about 10 days or so.