The success rate of fresh embryo transfer is higher than that of frozen embryo transfer. The success rate of fresh embryo transfer is about 40%, but of course it varies from person to person, if the uterine cavity environment is not good or the ovarian function is not good and there is over-stimulation on the transfer day, it is not suitable for fresh embryo transfer and the success rate of fresh embryo transfer is lower. In this case, it is recommended to do frozen embryo transfer, so that the success rate of frozen embryo transfer can be higher than that of fresh embryo transfer if the uterine cavity environment is well adjusted or the ovarian function is well adjusted. If the physical condition is very good, the uterine environment, endocrine level and embryo quality are all very good, in this case, fresh embryo transfer is of course the best, and the success rate is higher than that of frozen embryo transfer. There are no absolutes in everything, it depends on your health condition and you should decide whether you want to have a fresh or frozen embryo transfer.