July Health will be happy to answer your questions. Embryo transfer is a very important and key step in the process of in vitro fertilization. IVF may create many high-quality embryos, but only 1-3 embryos will be transferred at a time, and the remaining embryos will be frozen and retransformed. Transfer process of IVF frozen embryos after thawing: 1. Physical examination before frozen embryo transfer. When it is considered that frozen embryos can be transplanted, it is necessary to carry out a series of examinations on women's bodies to determine the conditions for frozen embryos to be transplanted, and to determine the number and the best time for transplantation. Before frozen embryo transfer, there were six sex hormone tests, and the ovulation period and endometrial thickness were monitored by B-ultrasound. Through these two tests, we can determine whether the endocrine status and endometrial thickness of women are suitable for embryo transfer, while B-ultrasound monitoring ovulation period can determine ovulation time, and then determine the best time for transplantation: only when it coincides with the time of embryo formation can we ensure the success rate of IVF to a greater extent, and transplant it about two days after ovulation. Second, embryo thawing: When a woman's physical condition is suitable for embryo transfer, the embryo should be thawed at the best time of frozen embryo transfer. Third, the embryo thawing step: 1, find the couple's embryo, take it out, and put it in a room temperature environment to let the frozen embryo naturally thaw. 2. Different solutions were used to eliminate the influence of cryoprotectants on embryos. 3. Heat the embryo to 37 degrees, and then mix it with a small amount of culture medium. 4. Frozen embryo transfer process: The whole frozen embryo transfer process takes about 15 minutes, which is safe and painless. The process is the same as that of fresh embryo transfer. 1. Insert the catheter into the cervix and enter the uterus. 2. The embryo injection catheter enters the uterus. 3. The patient lies down for a few minutes so that the embryo can be integrated into the endometrium. 5. After IVF frozen embryo transfer, some doctors will ask the patient to continue to lie flat and rest until the body recovers. Even prescribe some drugs to promote embryo implantation. Go to the hospital for pregnancy test about 12 after transplantation.