An enlarged uterus can be caused by uterine fibroids, adenomyosis, and poor uterine recovery after childbirth. Uterine enlargement may be able to heal itself depending on the situation. 1. Uterine fibroids: If a woman has uterine fibroids, especially subplasma fibroids or interstitial fibroids, the uterus is likely to increase in size. When a woman has uterine fibroids, which cause uterine enlargement, she needs to remove the cause of the disease, that is to say, she needs to remove the uterine fibroids in order to promote the uterus to return to normal size. 2. Adenomyosis: When a woman has adenomyosis, the uterus will also enlarge, and it is very difficult for this condition to heal itself. 3. Postpartum poor uterine recovery: Women who have poor rest or uterine residuals after giving birth are prone to poor uterine recovery, resulting in an enlarged uterus. In this case, by adjusting the postnatal routine and supplementing nutrition, it is possible to promote the enlarged uterus to return to normal size. However, if there is a lot of residue in the uterine cavity, it may be necessary to perform a hysterectomy to help treat the condition. Women with an enlarged uterus need to seek medical advice as soon as possible.