IVF is to perform embryo transfer, which is one of the more used methods of assisted reproduction. There are more preparations before IVF, mainly the following: first of all, we have to see if the condition of the woman’s uterus is normal and if the thickness of the lining is able to conceive a baby, first we have to do an ultrasound to understand the condition of the woman’s uterus. Secondly, a series of blood tests should be drawn to improve the situation, especially the sex hormone level, coagulation function and so on. If the sex hormone level is unstable, the success rate of doing embryo transfer will be significantly decreased. Once again, eggs should be retrieved and good quality eggs should be retrieved in order to be cultured into embryos that can be transferred at the right time. It is recommended to find a regular and qualified hospital to do this procedure.