Adenomyosis
Adenomyosis is a prevalent gynecological disease in which endometrial (uterine lining) cells invade into the uterine muscle layer (myometrium). This ectopically located endometrial tissue is functional, proliferating and “menstruating” during every menstrual cycle. The ensuing inflammation will permeate into the uterine muscle, causing it to undergo hyperplastic changes leading to a bulkier, heavier, and occasionally tender uterus. The prevalence of adenomyosis may be as high as 35% of reproductive-age women and typically presents with painful and heavy menses.