A woman with a thin uterine lining is not eligible for IVF transfer. If a woman’s uterine lining is below 0.7 centimeters, the endometrium’s tolerance is very low not conducive to the embryo’s implantation and the conception rate is very low. Under normal circumstances, before IVF transplantation, it is usually necessary to adjust the thickness of the uterine lining, and when the lining is adjusted to about 0.9 centimeters, it is more suitable for the fertilized egg to bed and grow and develop. And after the IVF transplantation, women also need to pay attention to rest and eat more food high in estrogen. Appropriate oral or vaginal administration of progesterone soft gelatin capsules will help the growth of the endometrium, relax the uterine muscles to reduce rejection, and facilitate the early growth and development of the embryo.