Myomegaly refers to the abnormal enlargement of the myometrium, which is the muscular layer of the uterus. This condition can be associated with various factors, including hormonal imbalances, uterine fibroids, or other pathologies affecting the uterus. Symptoms may vary and can include pelvic pain or abnormal bleeding, depending on the underlying cause. Diagnosis typically involves imaging techniques such as ultrasound or MRI.