The normal size of the uterus is 5.5-7.5cm in length, 4.5-5.5cm in width and 3.0-4.0cm in thickness. It doesn’t matter if the uterus is physiological and does not need to be treated, but pathological uterine enlargement needs to be treated. 1. physiological uterine enlargement: ① early pregnancy, not yet diagnosed pregnancy, check the uterus is large, you need to timely blood test HCG to confirm whether the pregnancy. ② just after giving birth to a baby, the uterus has not yet recovered to its original shape and large. These cases do not require treatment. 2. Pathological enlarged uterus: such as uterine fibroids, adenomyosis, endometrial polyps, myometritis, endometrial thickening, endometrial cancer, etc., may lead to enlarged uterus, which need to be clearly diagnosed and then actively treated according to the different causes. Uterine enlargement needs to go to the hospital for a clear diagnosis, if the cause is pathological, the doctor will formulate an individualized diagnosis and treatment plan according to the specific condition of the individual, so as to avoid delaying the condition.