Definition: An abnormal proliferation (or overgrowth) of the lining of the uterus. It is typically diagnosed through a biopsy or sampling of the uterine lining, a procedure most doctors perform in their office. A small percentage of cases of endometrial hyperplasia are precancerous.
Pronunciation: en-doh-MEE-tree-uhl hi-per-PLAY-zshuh
Also Known As: Uterine hyperplasia
Examples: After she noticed some unusual bleeding, they did a biopsy of her uterine lining and diagnosed endometrial hyperplasia.