A uterus of 60x50x61mm3 on day 50 of early pregnancy is generally not normal. In a girl’s pregnancy there will be a series of changes in the body, the uterus is particularly prominent, will gradually become softer and larger with the prolongation of pregnancy, mainly due to muscle cell hypertrophy, prolongation. Uterine muscle wall non-pregnancy is 1cm, mid-pregnancy thickening up to 2.0-2.5cm, so the title of the uterus thickness of 61mm is not normal. The cause of the enlarged uterus is related to a number of factors, which may be excessive amniotic fluid, multiple pregnancies, or tumors in the uterus. Pregnant women are advised to go to the hospital for ultrasonography to clarify the cause before proceeding to the next step.