The uterus shifts during pregnancy, and as the fetus grows and develops during this part of the mother’s pregnancy, the position and condition of the uterus changes. The normal position of the uterus is in the center of the pelvis, with the fundus of the uterus located below the level of the pelvic inlet. During the first 3 months of pregnancy, the fundus can be touched above the pubic symphysis as the fetus continues to grow. As the weeks of pregnancy increase, the mother’s abdomen bulges very significantly and the fundus can reach below the xiphoid process as the fetus develops. In addition, due to the left sigmoid colon occupation, the uterus in the middle and late pregnancy will appear a mild rightward rotation phenomenon. Therefore, throughout the pregnancy, the pregnant woman’s uterus is not only the position can be changed, the uterus itself is also very big changes. It is recommended that pregnant women should be on time for maternity checkups during pregnancy and seek medical attention in a timely manner.