The thickness of the endometrium is very relevant to pregnancy. Since the female uterus is the place where the fertilized egg and the fetus grow and develop, the endometrium is equivalent to the soil in which the fetus develops, and if the soil is too thin it means that the soil is not fertile enough. If the soil is too thin, it means that the soil is not fertile enough. This will lead to lack of nutrients when the fertilized egg is laid in it, or it will not be able to be laid in such a uterine cavity. Therefore, the thickness of a woman’s endometrium is normally required for the fertilized egg to be laid, and if it is too thin, it is very unfavorable for the fertilized egg to be laid, which can easily lead to miscarriage.