Disordered proliferative endometrium is a result of an anovulatory cycle that lacks ovulation and leads to high levels of estrogen from low progesterone levels. The University of Virginia School of Medicine describes ano... More »

The most common treatment for endometrial hyperplasia, which occurs when there is proliferation of the endometrium, is progestin therapy, according to the Women's Health and Education Center. Although endometrial hyperpl... More »

www.reference.com Health Women's Health

The hormone estrogen causes the womb lining or endometrium to thicken during the first part of the menstrual cycle, the American Congress of Obstetricians and Gynecologists. Estrogen is manufactured in the ovaries. If pr... More »

Abnormal thickening of the uterine wall occurs when estrogen and progesterone hormonal levels are imbalanced: excess estrogen with low or no levels of progesterone. The imbalance can result from overproduction of estroge... More »

Excess estrogen and low levels of progesterone cause uterine lining thickening, or endometrial hyperplasia, explains Healthgrades. Estrogen causes uterine wall thickening in preparation for pregnancy, while progesterone ... More »

www.reference.com Health Women's Health Reproductive Anatomy

Thickening of the endometrial lining is caused when there is an excess of the hormone estrogen without the corresponding female hormone, progesterone, states Healthline. When this occurs it is known as endometrial hyperp... More »

www.reference.com Health Women's Health Reproductive Anatomy

Thickening of the uterus lining, or endometrial hyperplasia, is usually caused by too much estrogen without progesterone, according to the American Congress of Obstetricians and Gynecologists. This hormonal imbalance occ... More »

www.reference.com Health Women's Health Reproductive Anatomy