Endometrial hyperplasia is an alteration that affects the inner layer of the uterus (i.e. the endometrium). Due to an excess or irregular amount of estrogens, the endometrium is excessively stimulated. As a result, it becomes thicker than it should.
By Ana Mª Villaquirán Villalba MD, MSc (gynecologist), Mark P. Trolice MD, FACOG, FACS, FACE (reproductive endocrinologist), Zaira Salvador BSc, MSc (embryologist) and Sandra Fernández BA, MA (fertility counselor).
Last Update: 06/13/2018