The success rate of frozen embryo transfer is generally 40% to 50%. The success rate of frozen embryo transfer is related to the age of the mother, the quality of the embryos and the uterine environment. It is related to the mother’s age, if the mother is under 35 years old, the success rate of the transfer is relatively high; it is related to the quality of the embryos, the better the quality of the embryos, the higher the success rate; it is related to the uterine environment, if the thickness of the uterine lining is above 7mm, the success rate is relatively high, on the whole, generally speaking, the success rate is 40%~50%. It should be noted that pregnant women after frozen embryo transfer should maintain a happy mood, moderate exercise, reasonable diet, etc. Physical examination should be carried out before the transfer, and the success rate of the transfer may be greatly reduced if there are endometrial and other lesions. If there is any discomfort in frozen embryo transfer, it is recommended that the patient should undergo regular treatment under the guidance of the doctor, and should not take care of it on their own, so as to avoid adverse consequences.