The success rate of fresh transfer in the uterus can be high only if the endometrium reaches a certain thickness and the ovaries are functioning normally and the hormonal secretion in the body is normal, and then the embryos are directly transferred in the uterus without cryopreservation. If a woman’s endometrium is thin, hormone secretion is not normal, ovarian function is low or ovaries are overly enlarged, the embryos should be frozen and preserved until the woman’s endometrium reaches a certain thickness, hormone secretion is normal and ovarian function is normal before transferring. After the transfer, it is recommended to relax and get enough sleep, don’t eat spicy and stimulating food, pay attention to personal hygiene, don’t do strenuous exercise, and strengthen nutrition with the treatment.