Endometrial polyps originate as focal hyperplasia of the basalis layer of the endometrium and become localized growths of endometrial tissue covered by epithelium containing therein a variable number of glands, stroma and blood vessels. They are usually benign, but 0.5-1% can become malignant.
The diagnosis of endometrial polyps is more frequent due to the spread use of vaginal ultrasound. The highest incidence occurs between 40 and 65 years of age.
Polypectomy is indicated for any symptomatic endometrial polyp. Removal of asymptomatic polyps is also frequently recommended, but has not shown a significant benefit.