The standard value of IVF progesterone should be less than 1ng/ml. If the progesterone value is higher than 1ng/ml before ovulation, it mostly indicates early ovulation of follicles or premature luteinization of ovaries, which is mainly caused by the use of ovulation-promoting drugs, resulting in a lower success rate after fresh embryo transfer. Before IVF transfer, women need to test whether the development of ovarian function and endometrium are synchronized and whether they are suitable for the growth and development of embryos after implantation, if the embryos are not synchronized for transfer, it will easily lead to embryo abortion and spontaneous miscarriage, thus reducing the success rate of IVF. The success rate of IVF itself is around 30%, which is related to various factors, such as egg and sperm quality and endometrial development.