Natural cycle transfer is suitable for patients with normal ovulation. After ovulation, endometrial transformation is performed and frozen transfer is performed, first follicle monitoring is performed on 10-12 days of menstruation to induce follicle enlargement, luteal support is performed after natural rupture, then the frozen thawed embryos are thawed and embryo transfer is performed. If patients with abnormal ovulation are not allowed to undergo natural cycle thawing transfer, ultrasound monitoring and endocrine examination should be performed before transfer, and if the menstrual cycle is irregular, medication can be used to promote ovulation before transfer. The success rate of IVF is still relatively low. To ensure the success rate of frozen embryo transfer after the transfer, you should pay attention to rest, strengthen nutrition, eat more protein-rich food, supplement folic acid, and pay attention to regular checkups.