You need to inform your doctor in time before embryo transfer if any of the following situations occur, and your doctor will decide whether or not the transfer can be done according to your specific situation, and if necessary, abandon the transfer of the current cycle. Patients with frozen embryo transfer need to be informed one day in advance to avoid wasting your embryos as well as financial loss, or even leading to serious consequences such as upstream infection. Never transfer blindly because you are in a hurry to transfer concealing the following relevant conditions. Commonly, there are the following situations: 1, vaginal inflammation: such as vulvovaginal itching, discomfort and leukorrhea. 2, vaginal bleeding or running water. 3, abdominal pain, diarrhea: diarrhea will be too fast because of intestinal peristalsis so that the uterus is affected; the need for medication can not be completely ruled out the toxic effects of drugs on the beat. 4, high fever: 37.5 degrees below the question when normal, when you apply progesterone, than the original basal body temperature rose 0.3-0.5 degrees is normal; if the temperature is higher than 38 degrees, promptly to the fever clinic. 5, the need for vaccination after a pet bite is also not suitable for transplantation. 6, serious cold or need yo temporary medication.