Uterine exploration, also known as uterine cavity examination, checks the thickness and shape of the lining of the uterine cavity. Women need to do uterine exploration, also known as trial transfer, before IVF transfer to observe whether there are adhesions in the uterine cavity and to choose the place where the endometrium is more nutritious for embryos to be transferred to bed. The embryos will be able to get enough nutritional supply to improve the success rate of IVF. If there are serious adhesions in the uterine cavity or the uterine lining is thin, transferring embryos to such places for growth and development will easily lead to embryo abortion and spontaneous miscarriage, and the success rate of IVF will be reduced or even lead to failed transfers. Women should pay attention to keep their vulva clean and hygienic before doing the uterine probe, and must undergo strict sterilization operation before they can perform the uterine cavity examination.