If you want to undergo IVF transplantation, you have to make sure that your uterine lining reaches a certain thickness before you can undergo the transplantation. It is better to transfer the endometrium above 7mm, which is relatively more successful after the transfer. An endometrial lining between 8-14mm is more suitable for transplantation. If the endometrial lining is too thick or too thin, it will directly affect the normal implantation of the embryo. However, it is not only necessary to maintain the normal thickness of the endometrium, but also need to cooperate with other conditions, for example, there is no other abnormal reaction on the top of the endometrium, if there are polyps or endometrial adhesion, it is also not possible to carry out IVF implantation. The thickness of the endometrium has a certain relationship with the success rate of the implantation, the endometrium is relatively thick, the success rate will be relatively high, and the embryo will be more stable after implantation.