The symptoms of uterine wall thickening, or endometrial hyperplasia, are menstrual periods that last longer or are heavier than usual, bleeding after menopause, and menstrual cycles that are shorter than 21 days, accordi... 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 » Health Women's Health Reproductive Anatomy

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 »

Steps to prevent endometrial hyperplasia, or thickening of the uterine wall, include maintaining a healthy weight and taking oral contraceptives containing both estrogen and progestin to manage irregular periods, explain... More »

The signs of endometrial thickening include shorter-than-usual menstrual cycles or unusually heavy bleeding during menstrual cycles, according to the American Congress of Obstetricians and Gynecologists. Bleeding that oc... More »

Endometrial hyperplasia is an abnormal thickening of the lining of the uterus, according to the American Congress of Obstetricians and Gynecologists. The condition usually develops during menopause and perimenopause when... More »

The thickening of the endometrium during perimenopause is known as endometrial hyperplasia, notes the American Congress of Obstetricians and Gynecologists. Though the condition usually occurs after menopause, it can occu... More »