An endometrium of 0.9 cm is normal for pregnancy. A woman’s uterus is the place where new life is conceived. The endometrium is the mucous membrane that covers the uterine cavity and the thickness of the endometrium determines a woman’s chances of a successful pregnancy. The thickness of the endometrium determines a woman’s chances of success in pregnancy. Too thick or too thin may affect pregnancy, and a thin endometrium may cause unstable fertilization of the egg. A too-thick endometrium may result in a fertilized egg not being able to implant. The normal thickness of the endometrium is 8-9mm. 0.9cm of endometrium is normal and can lead to a normal pregnancy, so don’t worry too much. It is recommended to have a comprehensive pre-pregnancy check-up before pregnancy, actively eliminate some factors that may cause infertility or miscarriage, and take folic acid in time to prevent fetal neural tube abnormality.