An enlarged uterus has grown beyond its average size, states WebMD. The size of a normal uterus is about the same as a small apple, according to EverydayHealth.com. Pregnancy can enlarge the uterus; however, uterine fibroids and adenomyosis are the most common causes in non-pregnant women according to WebMD.
Fibroids are benign tumors in the muscular wall of the uterus, states WebMD. Though they do not usually bring about serious complications, they can cause pain, heavy bleeding during periods, and a uterus that is larger than normal. Adenomyosis, according to WebMD, is the thickening of the uterus due to the movement of the endometrium, or tissue lining the uterus, into the muscular outer wall. This is another potentially painful condition, linked with heavy periods, and can also be the culprit behind uterine enlargement.
Depending on pain, discomfort, bleeding, or other complications associated with an enlarged uterus, such as fibroids or adenomyosis, some women opt for a hysterectomy, an embolism procedure, endometrial ablation, or myolysis, states WebMD. These surgeries are not necessary but may relieve further issues with fibroids or adenomyosis. Medications to manage pain are another option.
Generally, having an enlarged uterus is not cause for concern depending on the cause of the condition, states Everyday Health. However, the cause must be determined by a sonogram or CT scan in order to rule out cancer.