The success rate of 1st IVF failure and re-transplantation, the two are not necessarily related, belonging to two independent pregnancy rates, will be affected by individual differences, there is no specific value. There are more reasons for the patient’s 1st pregnancy failure, which may be caused by the poor quality of the embryo itself. Although the appearance and scoring of all aspects of the performance of the embryo is good, but the embryo itself exists in some potential factors, which may lead to poor development, so it will cause the 1st transfer failure. Failure of the 1st transfer and the 2nd transfer do not have much relationship. The success rate of the 2nd transfer is mainly determined by the quality of the embryo and maternal factors, which need to be evaluated in all aspects before deciding, and cannot be generalized. It is recommended that women undergoing IVF should strictly follow the doctor’s instructions, and at the same time, relax, do not be anxious and nervous, and just let nature take its course.