Why do frozen embryo transfers need to be downgraded

The down-regulation before the frozen embryo transfer is mostly able to improve the success rate of embryo transfer.
If a woman has endometriosis, adenomyosis, etc., which may affect the success rate of frozen embryo transfer, by playing the descending tone, it can inhibit the activity of endometriosis and other foci, which will be conducive to embryo implantation.
In addition, hitting the descending tone can also maximize the avoidance of follicular development, inhibit the peak of luteinizing hormone, and improve the tolerance of the endometrium, thus improving the success rate of embryo transfer.
If a woman experiences abdominal pain, vaginal bleeding and other symptoms after embryo transfer, it is recommended that she go to the hospital in a timely manner, complete the relevant examinations under the guidance of the doctor, clarify the cause of the disease and then target treatment.